Citazione APA

Thomas, D. S. G., & Goudie , A. (2000). Physical geography (3rd ed.). Blackwell pub.

Stile di citazione Chicago

Thomas, David S. G., e Andrew Goudie. Physical Geography. 3rd ed. Blackwell pub, 2000.

Citazione MLA

Thomas, David S. G., e Andrew Goudie. Physical Geography. 3rd ed. Blackwell pub, 2000.