APA citiranje

David Norman. (1994). FAO farm systems management series N.7: Farming systems development and soil conservation. Rome: FAO.

Trích dẫn kiểu Chicago

David Norman. FAO Farm Systems Management Series N.7: Farming Systems Development and Soil Conservation. Rome: FAO, 1994.

MLA citiranje

David Norman. FAO Farm Systems Management Series N.7: Farming Systems Development and Soil Conservation. Rome: FAO, 1994.

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