Citação norma APA

Williams, B., & Hummelbrunner, R. (2009). Systems concepts in action: A practitioner's toolkit. Stanford Business Books.

Citação norma Chicago

Williams, Bob, and Richard Hummelbrunner. Systems Concepts in Action: A Practitioner's Toolkit. Stanford, Calif.: Stanford Business Books, 2009.

Citação norma MLA

Williams, Bob, and Richard Hummelbrunner. Systems Concepts in Action: A Practitioner's Toolkit. Stanford Business Books, 2009.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.