APA (7th ed.) Citation

Van Roo, W. A. (1982). Basics of a Roman catholic theology. Gregorian University Press.

Chicago Style (17th ed.) Citation

Van Roo, William A. Basics of a Roman Catholic Theology. Rome: Gregorian University Press, 1982.

MLA (9th ed.) Citation

Van Roo, William A. Basics of a Roman Catholic Theology. Gregorian University Press, 1982.