Tohutoro APA (7th ed.)
Podwal, M. (1982). Leonardo di Freud. Sperling & Kupfer.
Tohutoru Kātū Chicago (17th ed.)
Podwal, Mark. Leonardo Di Freud. Milano: Sperling & Kupfer, 1982.
Tohutoro MLA (9th ed.)
Podwal, Mark. Leonardo Di Freud. Sperling & Kupfer, 1982.
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