Costa, M. A., & Block, J. J. (1963). Reverse sex: By Mario A. Costa. Translation by Jules J. Block (3. Auflage.). Challenge.
Lua i Stíl Chicago (17ú heag.)Costa, Mario A., agus Jules J. Block. Reverse Sex: By Mario A. Costa. Translation by Jules J. Block. 3. Auflage. London: Challenge, 1963.
Lua MLA (8ú heag.)Costa, Mario A., agus Jules J. Block. Reverse Sex: By Mario A. Costa. Translation by Jules J. Block. 3. Auflage. Challenge, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.