Magenis, A., & Appel, J. C. (1963). Workbook for a History of the world (2d ed.). American Book Co..
Lua i Stíl Chicago (17ú heag.)Magenis, Alice, agus John Conrad Appel. Workbook for a History of the World. 2d ed. New York: American Book Co., 1963.
Lua MLA (8ú heag.)Magenis, Alice, agus John Conrad Appel. Workbook for a History of the World. 2d ed. American Book Co., 1963.
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