Gray, M. A. (1963). Development of the Newman Club Movement, 1893-1961. Philadelphia.
Lua i Stíl Chicago (17ú heag.)Gray, M. Alexander. Development of the Newman Club Movement, 1893-1961. Philadelphia, 1963.
Lua MLA (8ú heag.)Gray, M. Alexander. Development of the Newman Club Movement, 1893-1961. Philadelphia, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.