APA (7th ed.) Citation

(1993). World oil & gas production: Top 30 countries (1993 ed.).

Chicago Style (17th ed.) Citation

World Oil & Gas Production: Top 30 Countries. 1993 ed. London, 1993.

MLA (9th ed.) Citation

World Oil & Gas Production: Top 30 Countries. 1993 ed. 1993.

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