Παραπομπή APA

Whalen, J. K., & Sampedro, L. (2010). Soil ecology and management. CABI.

Παραπομπή Chicago Style

Whalen, Joann K., και Luis Sampedro. Soil Ecology and Management. Cambridge, MA: CABI, 2010.

Παραπομπή MLA

Whalen, Joann K., και Luis Sampedro. Soil Ecology and Management. CABI, 2010.