APA aipamena

Lewis, M. O. (1967). Foundation directory (3rd. ed.). Russel Stage Foundation.

Chicago Style aipamena

Lewis, Marianna O. Foundation Directory. 3rd. ed. Russel Stage Foundation, 1967.

MLA aipamena

Lewis, Marianna O. Foundation Directory. 3rd. ed. Russel Stage Foundation, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.