Behl, P. (1992). Positive health and happiness: : the art of living. CBS.
Cita Chicago (17th ed.)Behl, P.N. Positive Health and Happiness: : The Art of Living. Delhi: CBS, 1992.
Cita MLA (9th ed.)Behl, P.N. Positive Health and Happiness: : The Art of Living. CBS, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.