APA (7th ed.) Citation

Samways, L. (1997). The 12 secrets of health and happiness. Penguin.

Chicago Style (17th ed.) Citation

Samways, Louise. The 12 Secrets of Health and Happiness. Ringwood, Vic.: Penguin, 1997.

MLA (8th ed.) Citation

Samways, Louise. The 12 Secrets of Health and Happiness. Penguin, 1997.