APA-viite (7. p.)

Davies, S. (2013). Laughology: Improve your life with the science of laughter. Crown House Publishing Limited.

Chicago-viite (17. p.)

Davies, Stephanie. Laughology: Improve Your Life with the Science of Laughter. Carmarthen, Wales, UK: Crown House Publishing Limited, 2013.

MLA-viite (9. p.)

Davies, Stephanie. Laughology: Improve Your Life with the Science of Laughter. Crown House Publishing Limited, 2013.

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