Vecki, V. G. (1915). Sexual impotence (5th ed., enl.). W.B. Saunders Company.
Lua i Stíl Chicago (17ú heag.)Vecki, Victor G. Sexual Impotence. 5th ed., enl. Philadelphia, London: W.B. Saunders Company, 1915.
Lua MLA (8ú heag.)Vecki, Victor G. Sexual Impotence. 5th ed., enl. W.B. Saunders Company, 1915.
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