Parker, W. (1970). Homosexuals & employment: William Parker. The Corinthian Foundation.
Lua i Stíl Chicago (17ú heag.)Parker, William. Homosexuals & Employment: William Parker. San Francisco, Calif.: The Corinthian Foundation, 1970.
Lua MLA (8ú heag.)Parker, William. Homosexuals & Employment: William Parker. The Corinthian Foundation, 1970.
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