Παραπομπή APA

Lal, R. (1999). Soil quality and soil erosion. CRC Press.

Παραπομπή Chicago Style

Lal, Rattan. Soil Quality and Soil Erosion. Boca Raton: CRC Press, 1999.

Παραπομπή MLA

Lal, Rattan. Soil Quality and Soil Erosion. CRC Press, 1999.