APA (7th ed.) Citation

Kramer, N. J. T. A., & Smit, J. (1977). Systems thinking: Concepts and notions. Springer US.

Chicago Style (17th ed.) Citation

Kramer, Nic J. T. A., and Jacob Smit. Systems Thinking: Concepts and Notions. Boston, MA: Springer US, 1977.

MLA (9th ed.) Citation

Kramer, Nic J. T. A., and Jacob Smit. Systems Thinking: Concepts and Notions. Springer US, 1977.