APA aipamena

Gelfand, D. E. (1982). Aging: The ethnic factor. Little, Brown.

Chicago Style aipamena

Gelfand, Donald E. Aging: The Ethnic Factor. Little, Brown, 1982.

MLA aipamena

Gelfand, Donald E. Aging: The Ethnic Factor. Little, Brown, 1982.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.