Ruiz, M., & Mills, J. (1997). The four agreements: A practical guide to personal freedom. Amber-Allen Pub. : Distributed by Publishers Group West.
Cita Chicago Style (17a ed.)Ruiz, Miguel, y Janet Mills. The Four Agreements: A Practical Guide to Personal Freedom. San Rafael, Calif.: Amber-Allen Pub. : Distributed by Publishers Group West, 1997.
Cita MLA (8a ed.)Ruiz, Miguel, y Janet Mills. The Four Agreements: A Practical Guide to Personal Freedom. Amber-Allen Pub. : Distributed by Publishers Group West, 1997.
Precaución: Estas citas no son 100% exactas.