APA (7th ed.) Zitazioa
Erthridge, J. M. (1978). Contemporary Authors: A Bibliographyical guide to curent writers in Fiction, General nonfiction, poetry, Journalism, Drama, Motion pictures, television, and Other fields (ed.). Gale Research company.
Chicago Style (17th ed.) Zitazioa
Erthridge, James M. Contemporary Authors: A Bibliographyical Guide to Curent Writers in Fiction, General Nonfiction, Poetry, Journalism, Drama, Motion Pictures, Television, and Other Fields. ed. Michigan: Gale Research company, 1978.
MLA (9th ed.) Zitazioa
Erthridge, James M. Contemporary Authors: A Bibliographyical Guide to Curent Writers in Fiction, General Nonfiction, Poetry, Journalism, Drama, Motion Pictures, Television, and Other Fields. ed. Gale Research company, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.