Gaya APA

Karpinski, E. (2021). "Put Happiness to Work: 7 Strategies to Elevate Engagement for Optimal Performance| . New York: McGraw-Hill.

Gaya MLA

Karpinski, Eric. ""Put Happiness to Work: 7 Strategies to Elevate Engagement for Optimal Performance|". New York: McGraw-Hill, 2021. book.