Microfilm. St. Louis, Mo. : Pius XII Memorial Library, St. Louis University, 1970. 1 reel (part); 35 mm. (Manuscripta, microfilms of rare and out-of-print books ; list 84, reel 14.6, no. 42) (History of Western philosophy). On reel with 7 other titles; original in Biblioteca apostolica vaticana.
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