APA (7th ed.) Citation

Niven. (2005). The 100 simple secrets of the best half of life: What scientists have learned and how you can use it. HarperSanFrancisco.

Chicago Style (17th ed.) Citation

Niven. The 100 Simple Secrets of the Best Half of Life: What Scientists Have Learned and How You Can Use It. San Francisco: HarperSanFrancisco, 2005.

MLA (8th ed.) Citation

Niven. The 100 Simple Secrets of the Best Half of Life: What Scientists Have Learned and How You Can Use It. HarperSanFrancisco, 2005.