Cita APA (7th ed.)

Churchman, C. W. (1968). The systems approach. Dell Pub.

Cita Chicago (17th ed.)

Churchman, C. West. The Systems Approach. New York: Dell Pub, 1968.

Cita MLA (9th ed.)

Churchman, C. West. The Systems Approach. Dell Pub, 1968.