Leifer, R. (1997). The happiness project: The three poisons that cause the suffering we inflict on ourselves and others. Snow Lion Publications.
Chicago-Zitierstil (17. Ausg.)Leifer, Ron. The Happiness Project: The Three Poisons That Cause the Suffering We Inflict on Ourselves and Others. Ithaca, N.Y: Snow Lion Publications, 1997.
MLA-Zitierstil (8. Ausg.)Leifer, Ron. The Happiness Project: The Three Poisons That Cause the Suffering We Inflict on Ourselves and Others. Snow Lion Publications, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.