APA (7th ed.) Citation

Offshore magazine. (1997). Southeast Asia: 1997 offshore oil & gas activity and concession map. The Magazine.

Chicago Style (17th ed.) Citation

Offshore magazine. Southeast Asia: 1997 Offshore Oil & Gas Activity and Concession Map. [Tulsa, Okla.]: The Magazine, 1997.

MLA (9th ed.) Citation

Offshore magazine. Southeast Asia: 1997 Offshore Oil & Gas Activity and Concession Map. The Magazine, 1997.