Ramus, P., & Ong, W. J. (1970). Scholae in liberales artes: Petrus Ramus. With an introduction by Walter J. Ong. Olms.
Citace podle Chicago (17th ed.)Ramus, Petrus, a Walter J. Ong. Scholae in Liberales Artes: Petrus Ramus. With an Introduction by Walter J. Ong. Hildesheim ; New York: Olms, 1970.
Citace podle MLA (8th ed.)Ramus, Petrus, a Walter J. Ong. Scholae in Liberales Artes: Petrus Ramus. With an Introduction by Walter J. Ong. Olms, 1970.
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