Cita APA (7a ed.)

Schwarzenegger, A. (2023). Be useful: Seven tools for life. Penguin Press.

Cita Chicago Style (17a ed.)

Schwarzenegger, Arnold. Be Useful: Seven Tools for Life. New York: Penguin Press, 2023.

Cita MLA (8a ed.)

Schwarzenegger, Arnold. Be Useful: Seven Tools for Life. Penguin Press, 2023.

Precaución: Estas citas no son 100% exactas.