Cita APA (7th ed.)

Ryan, E. J. (1946). Psychobiologic foundations in dentistry. Thomas.

Cita Chicago (17th ed.)

Ryan, Edward James. Psychobiologic Foundations in Dentistry. Springfield, IL: Thomas, 1946.

Cita MLA (9th ed.)

Ryan, Edward James. Psychobiologic Foundations in Dentistry. Thomas, 1946.