APA (7th ed.) Citation

Director, S. W., & Rohrer, R. A. (1972). Introduction to systems theory. McGraw-Hill Book Company.

Chicago Style (17th ed.) Citation

Director, Stephen W, and Ronald A. Rohrer. Introduction to Systems Theory. New York: McGraw-Hill Book Company, 1972.

MLA (9th ed.) Citation

Director, Stephen W, and Ronald A. Rohrer. Introduction to Systems Theory. McGraw-Hill Book Company, 1972.