APA (7th ed.) Citation

Penenberg, A. L. (2013). Play at work: How games inspire breakthrough thinking. Portfolio/Penguin.

Chicago Style (17th ed.) Citation

Penenberg, Adam L. Play at Work: How Games Inspire Breakthrough Thinking. New York: Portfolio/Penguin, 2013.

MLA (8th ed.) Citation

Penenberg, Adam L. Play at Work: How Games Inspire Breakthrough Thinking. Portfolio/Penguin, 2013.

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