Ricard, M. (2006). Happiness: A guide to developing life's most important skill (1. English ed.). Little, Brown.
Chicago Style (17th ed.) CitationRicard, Matthieu. Happiness: A Guide to Developing Life's Most Important Skill. 1. English ed. New York[u.a.]: Little, Brown, 2006.
MLA (8th ed.) CitationRicard, Matthieu. Happiness: A Guide to Developing Life's Most Important Skill. 1. English ed. Little, Brown, 2006.
Warning: These citations may not always be 100% accurate.