Cita APA

Norman, D., & Douglas, M. (1994). Farming systems development and soil conservation. Roma: FAO.

Citación estilo Chicago

Norman, David, and Malcolm Douglas. Farming Systems Development and Soil Conservation. Roma: FAO, 1994.

Cita MLA

Norman, David, and Malcolm Douglas. Farming Systems Development and Soil Conservation. Roma: FAO, 1994.

Precaución: Estas citas no son 100% exactas.