Ekeren, G. V., & Jack Canfield and Kimberly Kirberger. (2000). 12 simple secrets of happiness: Finding joy in everyday relationship. Prentice Hall Press.
Chicago Style (17th ed.) CitationEkeren, Glenn Van, and Jack Canfield and Kimberly Kirberger. 12 Simple Secrets of Happiness: Finding Joy in Everyday Relationship. New Jersey: Prentice Hall Press, 2000.
MLA (9th ed.) CitationEkeren, Glenn Van, and Jack Canfield and Kimberly Kirberger. 12 Simple Secrets of Happiness: Finding Joy in Everyday Relationship. Prentice Hall Press, 2000.
Warning: These citations may not always be 100% accurate.