APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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