Shetty, R. (2011). The Happiness Quotient. Westland Ltd.
Chicago-čujuhus (17. p.)Shetty, Rekha. The Happiness Quotient. Noida: Westland Ltd, 2011.
MLA-čujuhus (9. p.)Shetty, Rekha. The Happiness Quotient. Westland Ltd, 2011.
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