APA aipamena

National Endowment for the Humanities. (1980). Humanities. National Endowment for the Humanities.

Chicago Style aipamena

National Endowment for the Humanities. Humanities. [Washington, D.C.]: National Endowment for the Humanities, 1980.

MLA aipamena

National Endowment for the Humanities. Humanities. National Endowment for the Humanities, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.