APA

Blum M. L., . (1951). Counseling and psychology. New York: Prentice-Hall.

Chicago

Blum Milton L, . 1951. Counseling and psychology. New York: Prentice-Hall.

Harvard

Blum M. L., . (1951). Counseling and psychology. New York: Prentice-Hall.

MLA

Blum Milton L, . Counseling and psychology. New York: Prentice-Hall. 1951.