Van Ekeren, G. (2001). 12 simple secrets of happiness at work: Finding fulfillment, reaping rewards. Prentice Hall.
芝加哥风格引文Van Ekeren, Glenn. 12 Simple Secrets of Happiness at Work: Finding Fulfillment, Reaping Rewards. Upper Saddle River, NJ: Prentice Hall, 2001.
MLA引文Van Ekeren, Glenn. 12 Simple Secrets of Happiness at Work: Finding Fulfillment, Reaping Rewards. Prentice Hall, 2001.
警告：这些引文格式不一定是100％准确.