APA (7e ed.) Bronvermelding

Magdoff, F., & Weil, R. R. (2004). Soil organic matter in sustainable agriculture (1a. ed.). CRC.

Chicago (17e ed.) Bronvermelding

Magdoff, Fred, en Ray R. Weil. Soil Organic Matter in Sustainable Agriculture. 1a. ed. Danvers: CRC, 2004.

MLA (9e ed.) Bronvermelding

Magdoff, Fred, en Ray R. Weil. Soil Organic Matter in Sustainable Agriculture. 1a. ed. CRC, 2004.