Deismireacht APA

R P C Morgan. (1980). Soil erosion. New York: Longman Group Limited.

Trích dẫn kiểu Chicago

R P C Morgan. Soil Erosion. New York: Longman Group Limited, 1980.

Deismireacht MLA

R P C Morgan. Soil Erosion. New York: Longman Group Limited, 1980.

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