APA

Orr D. W., . (1965). Professional counseling on human behavior: its principles and practices. New York: F. Watts.

Chicago

Orr Douglass Winnett, . 1965. Professional counseling on human behavior: its principles and practices. New York: F. Watts.

Harvard

Orr D. W., . (1965). Professional counseling on human behavior: its principles and practices. New York: F. Watts.

MLA

Orr Douglass Winnett, . Professional counseling on human behavior: its principles and practices. New York: F. Watts. 1965.