APA Citation

FAO. (1991). World soil resources reports N.66: World soil resources. Rome: FAO.

Trích dẫn kiểu Chicago

FAO. World Soil Resources Reports N.66: World Soil Resources. Rome: FAO, 1991.

MLA Citation

FAO. World Soil Resources Reports N.66: World Soil Resources. Rome: FAO, 1991.

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