APA Citation

Niven, D. (2005). The 100 simple secrets of happy people: What scientists have learned and how you can use it. England: Capstone.

Chicago Style Citation

Niven, David. The 100 Simple Secrets of Happy People: What Scientists Have Learned and How You Can Use It. England: Capstone, 2005.

MLA Citation

Niven, David. The 100 Simple Secrets of Happy People: What Scientists Have Learned and How You Can Use It. England: Capstone, 2005.

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