APA (7th ed.) Citation

(2013). Think happy, be happy. Workman Publishing Co., Inc.

Chicago Style (17th ed.) Citation

Think Happy, Be Happy. New York: Workman Publishing Co., Inc, 2013.

MLA (8th ed.) Citation

Think Happy, Be Happy. Workman Publishing Co., Inc, 2013.

Warning: These citations may not always be 100% accurate.