APA aipamena

a.kobasa, p. (2007). the americana annual 2007. Grolier Incorporated.

Chicago Style aipamena

a.kobasa, paul. The Americana Annual 2007. Grolier Incorporated, 2007.

MLA aipamena

a.kobasa, paul. The Americana Annual 2007. Grolier Incorporated, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.