Hallett, P. H. (1961). What is a catholic? Collier books.
Chicago Style (17th ed.) CitationHallett, Paul H. What Is a Catholic? New York: Collier books, 1961.
MLA (9th ed.) CitationHallett, Paul H. What Is a Catholic? Collier books, 1961.
Warning: These citations may not always be 100% accurate.