APA (7th ed.) Citation

Yen, T. . F. (1975). The role of trace metals in petroleum. Ann Arbor Science.

Chicago Style (17th ed.) Citation

Yen, T F. The Role of Trace Metals in Petroleum. Ann Arbor, Mich.: Ann Arbor Science, 1975.

MLA (9th ed.) Citation

Yen, T F. The Role of Trace Metals in Petroleum. Ann Arbor Science, 1975.

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