Cita APA (7th ed.)
Mainzer, K., & Chua, L. O. (2013). Local activity principle. Imperial College Press.
Cita Chicago (17th ed.)
Mainzer, Klaus, i Leon O. Chua. Local Activity Principle. London: Imperial College Press, 2013.
Cita MLA (9th ed.)
Mainzer, Klaus, i Leon O. Chua. Local Activity Principle. Imperial College Press, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.