APA aipamena

Lipsey, R. (2015). Economics (3rd.). Oxford University Press.

Chicago Style aipamena

Lipsey, Richard. Economics. 3rd. Oxford University Press, 2015.

MLA aipamena

Lipsey, Richard. Economics. 3rd. Oxford University Press, 2015.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.