Whelan, H. C. (1960). The Problem of state aid to Catholic schools in the United States: A comparative study of canon law and American constitutional law in the field of education. Pontificia Universitas Lateranensis.
Lua i Stíl Chicago (17ú heag.)Whelan, Hugh C. The Problem of State Aid to Catholic Schools in the United States: A Comparative Study of Canon Law and American Constitutional Law in the Field of Education. Romae: Pontificia Universitas Lateranensis, 1960.
Lua MLA (8ú heag.)Whelan, Hugh C. The Problem of State Aid to Catholic Schools in the United States: A Comparative Study of Canon Law and American Constitutional Law in the Field of Education. Pontificia Universitas Lateranensis, 1960.
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