APA aipamena

(1988). Geography Regions And Concepts/ Harm J. De Blij And Peter O. Muller. John Willey & Sons.

Chicago Style aipamena

Geography Regions And Concepts/ Harm J. De Blij And Peter O. Muller. John Willey & Sons, 1988.

MLA aipamena

Geography Regions And Concepts/ Harm J. De Blij And Peter O. Muller. John Willey & Sons, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.