Wit, J. B. F. d. (1994). Prevention of HIV infection among homosexual men: Behavior change and behavioral determinants / door John Bertha Franciscus de Wit. Thesis.
Lua i Stíl Chicago (17ú heag.)Wit, John Bertha Franciscus de. Prevention of HIV Infection Among Homosexual Men: Behavior Change and Behavioral Determinants / Door John Bertha Franciscus De Wit. Amsterdam: Thesis, 1994.
Lua MLA (8ú heag.)Wit, John Bertha Franciscus de. Prevention of HIV Infection Among Homosexual Men: Behavior Change and Behavioral Determinants / Door John Bertha Franciscus De Wit. Thesis, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.