APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.