Citace podle APA
Kipfer, B. A., & Le-Tan, P. (2014). 14,000 things to be happy about: The happy book (Newly revised and updated.). New York: Workman Publishing.
Styl ChicagoKipfer, Barbara Ann, and Pierre Le-Tan. 14,000 Things to Be Happy About: The Happy Book. Newly revised and updated. New York: Workman Publishing, 2014.
Citace podle MLAKipfer, Barbara Ann, and Pierre Le-Tan. 14,000 Things to Be Happy About: The Happy Book. Newly revised and updated. New York: Workman Publishing, 2014.
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