APA (7th ed.) Zitazioa

Hill, L. A. (1964). Elementary refresher Course. U. pr..

Chicago Style (17th ed.) Zitazioa

Hill, L. A. Elementary Refresher Course. London: U. pr., 1964.

MLA (9th ed.) Zitazioa

Hill, L. A. Elementary Refresher Course. U. pr., 1964.