Cronin, J. F. (1960). Labor-management and the fearful sixties. Diocesan Labor Institute.
Lua i Stíl Chicago (17ú heag.)Cronin, John F. Labor-management and the Fearful Sixties. New Haven, Conn.: Diocesan Labor Institute, 1960.
Lua MLA (8ú heag.)Cronin, John F. Labor-management and the Fearful Sixties. Diocesan Labor Institute, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.