APA (7th ed.) Citation

PennWell MAPSearch (Firm). (2012). 2013 The Gulf of Mexico. Offshore.

Chicago Style (17th ed.) Citation

PennWell MAPSearch (Firm). 2013 The Gulf of Mexico. Houston, Tex.: Offshore, 2012.

MLA (9th ed.) Citation

PennWell MAPSearch (Firm). 2013 The Gulf of Mexico. Offshore, 2012.

Warning: These citations may not always be 100% accurate.