Parker, W. (1971). Homosexuality: A selective bibliography of over 3000 items / by William Parker. Scarecrow.
Lua i Stíl Chicago (17ú heag.)Parker, William. Homosexuality: A Selective Bibliography of over 3000 Items / by William Parker. Metuchen, NJ: Scarecrow, 1971.
Lua MLA (8ú heag.)Parker, William. Homosexuality: A Selective Bibliography of over 3000 Items / by William Parker. Scarecrow, 1971.
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