Behl, P. N. (1992). Positive health and happiness: The art of living (2nd ed.). CBS.
Cita Chicago (17th ed.)Behl, P. N. Positive Health and Happiness: The Art of Living. 2nd ed. Delhi: CBS, 1992.
Cita MLA (9th ed.)Behl, P. N. Positive Health and Happiness: The Art of Living. 2nd ed. CBS, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.