Sheehy, E. P., Keckeissen, R. G., & McIlvaine, E. (1976). Guide to reference books (9th ed.). American Library Association.
Cita Chicago Style (17a ed.)Sheehy, Eugene P., Rita G. Keckeissen, y Eileen McIlvaine. Guide to Reference Books. 9th ed. Chicago: American Library Association, 1976.
Cita MLA (9a ed.)Sheehy, Eugene P., et al. Guide to Reference Books. 9th ed. American Library Association, 1976.
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