APA (7th ed.) Citation

PennWell Publishing Company. (1993). Oil & gas map of South America. PennWell.

Chicago Style (17th ed.) Citation

PennWell Publishing Company. Oil & Gas Map of South America. Tulsa, OK: PennWell, 1993.

MLA (9th ed.) Citation

PennWell Publishing Company. Oil & Gas Map of South America. PennWell, 1993.

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