APA aipamena

Samuelson, P. A. (1972). International economic relations. London: MacMillan.

Chicago Style aipamena

Samuelson, Paul A. International Economic Relations. London: MacMillan, 1972.

MLA aipamena

Samuelson, Paul A. International Economic Relations. London: MacMillan, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.