APA aipamena

Chisholm, M. (1973). Geography and economics (2nd ed.). Bell.

Chicago Style aipamena

Chisholm, Michael. Geography and Economics. 2nd ed. London: Bell, 1973.

MLA aipamena

Chisholm, Michael. Geography and Economics. 2nd ed. Bell, 1973.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.