Ōkawa, R. (2003). An unshakable mind: How to overcome life?s difficulties. Lantern Books.
Citación estilo ChicagoŌkawa, Ryūhō. An Unshakable Mind: How to Overcome Life?s Difficulties. New York: Lantern Books, 2003.
Cita MLAŌkawa, Ryūhō. An Unshakable Mind: How to Overcome Life?s Difficulties. Lantern Books, 2003.
Warning: These citations may not always be 100% accurate.