APA (7th ed.) Citation

Forrester, J. W. (1968). Principles of systems. Wright-Allen Press, Inc.

Chicago Style (17th ed.) Citation

Forrester, Jay Wright. Principles of Systems. Cambrige, Mass: Wright-Allen Press, Inc, 1968.

MLA (9th ed.) Citation

Forrester, Jay Wright. Principles of Systems. Wright-Allen Press, Inc, 1968.