Cita APA (7a ed.)

O'Brien, D. J. (1992). Isaac Hecker: An American Catholic. Paulist Press.

Cita Chicago Style (17a ed.)

O'Brien, David J. Isaac Hecker: An American Catholic. New York: Paulist Press, 1992.

Cita MLA (8a ed.)

O'Brien, David J. Isaac Hecker: An American Catholic. Paulist Press, 1992.