Cita APA (7th ed.)

Ōkawa, R. (2003). An unshakable mind: How to overcome life?s difficulties. Lantern Books.

Cita Chicago (17th ed.)

Ōkawa, Ryūhō. An Unshakable Mind: How to Overcome Life?s Difficulties. New York: Lantern Books, 2003.

Cita MLA (9th ed.)

Ōkawa, Ryūhō. An Unshakable Mind: How to Overcome Life?s Difficulties. Lantern Books, 2003.