Cita APA (7th ed.)

Sobek II, D. K. (2008). Understanding A3 Thinking. CRC Press.

Cita Chicago (17th ed.)

Sobek II, Durward K. Understanding A3 Thinking. Boca Raton ; London: CRC Press, 2008.

Cita MLA (9th ed.)

Sobek II, Durward K. Understanding A3 Thinking. CRC Press, 2008.