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.
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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.
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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.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.