APA aipamena

Lypsey , C. (2011). Economics (12 ed.). Oxford University Press.

Chicago Style aipamena

Lypsey , Christal. Economics. 12 ed. Oxford University Press, 2011.

MLA aipamena

Lypsey , Christal. Economics. 12 ed. Oxford University Press, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.