Brubaker, J. W. (1974). A philosophical inquiry into the morality of prizefighting [microform]. Photoduplication Service, University of the Philippines Library.
Lua i Stíl Chicago (17ú heag.)Brubaker, John W. A Philosophical Inquiry into the Morality of Prizefighting [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.
Lua MLA (9ú heag.)Brubaker, John W. A Philosophical Inquiry into the Morality of Prizefighting [microform]. Photoduplication Service, University of the Philippines Library, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.