APA (7th ed.) Citation

Ryan, J. A. (1921). A Catechism on the Social Question. New York.

Chicago Style (17th ed.) Citation

Ryan, John A. A Catechism on the Social Question. New York, 1921.

MLA (8th ed.) Citation

Ryan, John A. A Catechism on the Social Question. New York, 1921.

Warning: These citations may not always be 100% accurate.