Baucells, M., & Sarin, R. (2012). Engineering happiness: A new approach for building a joyful life. University of California Press.
Citace podle Chicago (17th ed.)Baucells, Manel, a Rakesh Sarin. Engineering Happiness: A New Approach for Building a Joyful Life. Berkeley: University of California Press, 2012.
Citace podle MLA (9th ed.)Baucells, Manel, a Rakesh Sarin. Engineering Happiness: A New Approach for Building a Joyful Life. University of California Press, 2012.
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