APA (7th ed.) Citation

Boardman, J., & Sauser. (2008). System thinking: Coping with 21st century problems. CRC Press.

Chicago Style (17th ed.) Citation

Boardman, John, and Sauser. System Thinking: Coping with 21st Century Problems. Boca Raton: CRC Press, 2008.

MLA (8th ed.) Citation

Boardman, John, and Sauser. System Thinking: Coping with 21st Century Problems. CRC Press, 2008.