BIBLIOGRAPHY
http://www.oilcrisis.com/tarsands/
http://www.energy.gov.ab.ca/com/Public+Reference+Centre/
http://www.changingworldtech.com/indus1.html
http://ens.lycos.com/ens/jun2001/2001-L-6-05-06.html
http://www.r-s.com/PET/PETST.html
http://mbendi.co.za?indy/olig/p0070.htm
http://www.eia.doe.gov
http://www.gov.ab.ca/env/climate/html
http://www.oilsandsdiscovery.com