APA (7th ed.) Citation

NIVEN. (2006). The 100 simple secrets of the best half of life. Capstone Publishing.

Chicago Style (17th ed.) Citation

NIVEN. The 100 Simple Secrets of the Best Half of Life. San Francisco: Capstone Publishing, 2006.

MLA (9th ed.) Citation

NIVEN. The 100 Simple Secrets of the Best Half of Life. Capstone Publishing, 2006.

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