APA aipamena

Pitzl, G. R. (2003). Geography 03/04. Guilford: McGraw-Hill/Dushkin.

Chicago Style aipamena

Pitzl, Gerald R. Geography 03/04. Guilford: McGraw-Hill/Dushkin, 2003.

MLA aipamena

Pitzl, Gerald R. Geography 03/04. Guilford: McGraw-Hill/Dushkin, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.