APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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