APA (7th ed.) Citation

Oelhaf, R. C. (1978). Organic agriculture: Economic and ecological comparisons with conventional methods. Allanheld, Osmun.

Chicago Style (17th ed.) Citation

Oelhaf, Robert C. Organic Agriculture: Economic and Ecological Comparisons with Conventional Methods. Montclair, N.J. : New York : Distribution [by] Halsted Press: Allanheld, Osmun, 1978.

MLA (9th ed.) Citation

Oelhaf, Robert C. Organic Agriculture: Economic and Ecological Comparisons with Conventional Methods. Allanheld, Osmun, 1978.