APA

Patterson C. H., . (1980). Theories of counseling and psychotherapy. New York: Harper & Row.

Chicago

Patterson C H, . 1980. Theories of counseling and psychotherapy. New York: Harper & Row.

Harvard

Patterson C. H., . (1980). Theories of counseling and psychotherapy. New York: Harper & Row.

MLA

Patterson C H, . Theories of counseling and psychotherapy. New York: Harper & Row. 1980.