APA (7th ed.) Citation

Petroleum Abstracts (Organization). (1992). Term frequency list. Petroleum Abstracts.

Chicago Style (17th ed.) Citation

Petroleum Abstracts (Organization). Term Frequency List. Tulsa, OK: Petroleum Abstracts, 1992.

MLA (9th ed.) Citation

Petroleum Abstracts (Organization). Term Frequency List. Petroleum Abstracts, 1992.

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