APA (7th ed.) Citation

Howe, H. E. (1937). Significance of petroleum research. Proceedings of the American Petroleum Institute, 19.

Chicago Style (17th ed.) Citation

Howe, H. E. "Significance of Petroleum Research." Proceedings of the American Petroleum Institute 1937: 19.

MLA (9th ed.) Citation

Howe, H. E. "Significance of Petroleum Research." Proceedings of the American Petroleum Institute, 1937, p. 19.

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