MLA

Sullivan, Harry Stack, and Helen Swick Perry. Schizophrenia As a Human Process. [1st ed.] New York: W. W. Norton, 1962.

APA

Sullivan, H. Stack, & Perry, H. Swick. (1962). Schizophrenia as a human process. [1st ed.] New York: W. W. Norton.

Chicago

Sullivan, Harry Stack, and Helen Swick Perry. Schizophrenia As a Human Process. [1st ed.] New York: W. W. Norton, 1962.