APA (7th ed.) Citation

O'Kelly, L. I., & Muckler, F. A. (1955). Introduction to psychopathology (2d ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

O'Kelly, Lawrence I., and Frederick A. Muckler. Introduction to Psychopathology. 2d ed. Englewood Cliffs [N.J.]: Prentice-Hall, 1955.

MLA (9th ed.) Citation

O'Kelly, Lawrence I., and Frederick A. Muckler. Introduction to Psychopathology. 2d ed. Prentice-Hall, 1955.