APA-viite

Bengtsson, L. (1988). Farm structures in tropical climates. Rome: PAO ( Food and agriculture organization of the United Nations.

Chicago-tyylinen lähdeviittaus

Bengtsson, Lennart. Farm Structures in Tropical Climates. Rome: PAO ( Food and agriculture organization of the United Nations, 1988.

MLA-viite

Bengtsson, Lennart. Farm Structures in Tropical Climates. Rome: PAO ( Food and agriculture organization of the United Nations, 1988.

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