Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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