APA (7th ed.) Citation

American Petroleum Institute. (1969). Air quality monographs. American Petroleum Institute.

Chicago Style (17th ed.) Citation

American Petroleum Institute. Air Quality Monographs. New York, N.Y.: American Petroleum Institute, 1969.

MLA (9th ed.) Citation

American Petroleum Institute. Air Quality Monographs. American Petroleum Institute, 1969.

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