May 2013, Vol. 240, No. 5
April 2013, Vol. 240 No. 4
2013 International Offshore & Gulf Of Mexico Report
April 2013, Vol. 240 No. 4
October 2012, Vol. 239 No. 10
Special To Pipeline & Gas Journal
September 2012, Vol. 239 No. 9
Controlling Greenhouse Gases
September 2012, Vol. 239 No. 9