APA aipamena

gazzolo, p. a. (2009). the americana annual 2009. Grolier Incorporated.

Chicago Style aipamena

gazzolo, paul a. The Americana Annual 2009. Grolier Incorporated, 2009.

MLA aipamena

gazzolo, paul a. The Americana Annual 2009. Grolier Incorporated, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.