Behl, P. N. (1992). Positive health and happiness: The art of living (2nd ed.). CBS.
Chicago Style (17th ed.) ZitazioaBehl, P. N. Positive Health and Happiness: The Art of Living. 2nd ed. Delhi: CBS, 1992.
MLA (9th ed.) ZitazioaBehl, P. N. Positive Health and Happiness: The Art of Living. 2nd ed. CBS, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.