Tohutoro APA (7th ed.)
Bretz, M. L., Dvorak, T., & Kirschner, C. (1992). Pasajes. McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)
Bretz, Mary Lee, Trisha Dvorak, me Carl Kirschner. Pasajes. [San Francisco?]: McGraw-Hill, 1992.
Tohutoro MLA (9th ed.)
Bretz, Mary Lee, et al. Pasajes. McGraw-Hill, 1992.
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