Tohutoro APA (7th ed.)
Gregersen, E., & Besana, D. (1987). Pratiche sessuali. CDE.
Tohutoru Kātū Chicago (17th ed.)
Gregersen, Edgar, me Donatella Besana. Pratiche Sessuali. Milano: CDE, 1987.
Tohutoro MLA (9th ed.)
Gregersen, Edgar, me Donatella Besana. Pratiche Sessuali. CDE, 1987.
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