Trích dẫn APA

(1987). Soil fertility and organic matter as critial components of production systems. Madison, USA: Soil Science Society of America, Inc.

Trích dẫn kiểu Chicago

Soil Fertility and Organic Matter As Critial Components of Production Systems. Madison, USA: Soil Science Society of America, Inc, 1987.

Trích dẫn MLA

Soil Fertility and Organic Matter As Critial Components of Production Systems. Madison, USA: Soil Science Society of America, Inc, 1987.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.