Cita APA

Oelhaf, R. C. (1978). Organic agriculture; economic and ecological comparisons with conventional methods.

Citación estilo Chicago

Oelhaf, Robert C. Organic Agriculture; Economic and Ecological Comparisons With Conventional Methods. 1978.

Cita MLA

Oelhaf, Robert C. Organic Agriculture; Economic and Ecological Comparisons With Conventional Methods. 1978.

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