APA (7th ed.) Citation

Peiffer, V. (1999). More positive thinking: How to create a better future for yourself. Thorsons.

Chicago Style (17th ed.) Citation

Peiffer, Vera. More Positive Thinking: How to Create a Better Future for Yourself. London: Thorsons, 1999.

MLA (8th ed.) Citation

Peiffer, Vera. More Positive Thinking: How to Create a Better Future for Yourself. Thorsons, 1999.