Webpage citations
1. "5 Things you Need to Know about the Honda Civic GX." Green Car. 05 Mar. 2010 <http://www.greencar.com/articles/5-things-need-honda-civic-gx-cng.php>.
2. "Natural Gas Vehicle Refueling Stations." Squidoo. 02 Jan. 2010 <http://www.squidoo.com/ngv-refueling>.
3."The Pros and Cons of CNg Conversion." CNG United. 2008 <http://cngunited.com/news/the-pros-and-cons-of-cng-conversion>.
4. "Alternative and Advanced Vehicles." U.S. Department of Energy. 2009 < http://www.afdc.energy.gov/afdc/vehicles/natural_gas_emissions.html>.
5. Pakistan has the hight number of CNG vehicles in the world." All things Pakistan. 2008 <http://pakistaniat.com/2009/07/14/pakistan-cng/>.
6. "List of Subsea Oil and Gas Companies in USA." Subsea oil and gascompanies in the US. 01 Dec. 2009 <http://www.subsea.org/company/allbycountry.asp?qcountry=USA>.
7. "Extended Expert View: CNG in Europe - Current Trends and Future Prospects. 2008" Research and Market. <http://www.researchandmarkets.com/reports/c30592>.
8. "CNG is Now an Old Story." Asiaone Motoring. <http://www.asiaone.com/Motoring/Motorworld/Story/A1Story20081110-99622.html>.
9. " California study suggests CNG emissions more toxic than diesel systems."Bulk Transporter. 2010 <http://bulktransporter.com/news/transportation_california_study_suggests/>.
10. "UPS Fleet Study Quantifies the Reliability, Low Emissions of CNG Trucks." Innovation report. 2010 <http://www.innovations-report.com/html/reports/energy_engineering/report-14247.html>.
11. "Is Driving a Natural Gas Powered Car a Good Deal?" GA Natural Gas rates. 2009 <http://www.ganaturalgasrates.com/natural-gas-powered-cars.html>.
12. "Natural-gas powered cars: Who even knows they exist?" USA Today. 2010 <http://www.usatoday.com/money/autos/2007-05-08-natural-gas-usat_N.htm>.
13. "What is CNG." CNG NOW! 03 Mar. 2010 <http://www.cngnow.com/EN-US/WhatIsCNG/pages/default.aspx>.
Video/Picture citation
1.http://www.ngv.com.my/images/225_carburetor%20cng%20system.jpg
2.http://sg.88db.com/sg/HTML/en-us/indexmkt/Lifestyle/images/cng_car1.jpg
3.http://www.consumerenergycenter.org/transportation/afvs/images/cng_04_map_369x467.gif
4.http://z.about.com/d/alternativefuels/1/0/Y/2/-/-/CNG_fillposition.jpg
5.http://www.hybridcarblog.com/uploaded_images/natural_gas_set_to_change_everything_about_fight_for_energy_independence-720907.jpg
6.http://www.damninteresting.com/the-last-great-steam-car
7.http://www.ngv.com.my/images/225_carburetor%20cng%20system.jpg
8.youtube.com
9.metcafe.com
10.http://www.ngvglobal.com/images/stories/vehicles/Honda%20Civic%20GX%202008.jpg
11.http://www.ewsews.com/CYLC.jpg
12.http://images.google.com/imgres?imgurl=http://www.ewsews.com/CYLC.jpg&imgrefurl=http://www.ewsews.com/cnghome.html&usg=__Jv-1505gIJ09wiU-Gt_X3RNv-24=&h=300&w=256&sz=22&hl=en&start=11&um=1&itbs=1&tbnid=v38Fmq4PBz8S1M:&tbnh=116&tbnw=99&prev=/images%3Fq%3Dcng%2Btanks%26um%3D1%26hl%3Den%26rlz%3D1T4GGIE_enUS344US344%26tbs%3Disch:1
13.http://thegreenconversion.com/wp-content/uploads/2008/10/cng_phill_03.jpg
14.http://www.cfsinternational.com.au/photos/public_CNG_refuelling_station.gif
15.http://www.seabreezecomputers.com/tips/stuff/hwy_1_traffic.jpg
16.http://www.daewoopak.com/photo_galler/facillities/CNG-Station---MSA-Bhera--So.JPG
17.http://www.listphile.com/Fortune_500_Logos/Chevron/image/004_chevron.png
18.http://www.pesgb.org.uk/pesgb/S4/Shell%20logo.jpg
19.http://z.about.com/d/alternativefuels/1/0/Z/N/-/-/ag_civicgx_ngvsticker.jpg
20.http://bioage.typepad.com/photos/uncategorized/nrel1.png
21.http://cdn-www.greencar.com/images/alternative-fuel-fleets/ups-gaseous-fueling.jpg
22.http://www.instablogsimages.com/images/2007/12/13/natural-gas-molecule_69.jpg
