APA

Healy T. C. B., . (1931). Catholic teachings. New York: The Macmillan Company.

Chicago

Healy Thomas C B, . 1931. Catholic teachings. New York: The Macmillan Company.

Harvard

Healy T. C. B., . (1931). Catholic teachings. New York: The Macmillan Company.

MLA

Healy Thomas C B, . Catholic teachings. New York: The Macmillan Company. 1931.