APA aipamena

Hill, R. C. (2008). Principles of economimics. John Wiley & Sons.

Chicago Style aipamena

Hill, R. Carter. Principles of Economimics. John Wiley & Sons, 2008.

MLA aipamena

Hill, R. Carter. Principles of Economimics. John Wiley & Sons, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.