APA (7th ed.) Zitazioa
Erthridge, J. M. (1975). Contemporary Authors: A Bibliographyical guide to curent authors and their works (ed.). Gale Research company.
Chicago Style (17th ed.) Zitazioa
Erthridge, James M. Contemporary Authors: A Bibliographyical Guide to Curent Authors and Their Works. ed. Michigan: Gale Research company, 1975.
MLA (9th ed.) Zitazioa
Erthridge, James M. Contemporary Authors: A Bibliographyical Guide to Curent Authors and Their Works. ed. Gale Research company, 1975.
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