APA (7th ed.) Citation

O'Neill, W. J. (1906). O'Neill's Catholic directory of Illinois. William J. O'Neill.

Chicago Style (17th ed.) Citation

O'Neill, William J. O'Neill's Catholic Directory of Illinois. Chicago: William J. O'Neill, 1906.

MLA (8th ed.) Citation

O'Neill, William J. O'Neill's Catholic Directory of Illinois. William J. O'Neill, 1906.