Roberts, R., & Hagen, D. (2014). How adam smith can change your life: An unexpected guide to human nature and happiness (Unabridged.). Your Coach Digital.
Цитирование в стиле Чикаго (17-е изд.)Roberts, Russ, и Don Hagen. How Adam Smith Can Change Your Life: An Unexpected Guide to Human Nature and Happiness. Unabridged. Rego Park: Your Coach Digital, 2014.
Цитирование MLA (8-е изд.)Roberts, Russ, и Don Hagen. How Adam Smith Can Change Your Life: An Unexpected Guide to Human Nature and Happiness. Unabridged. Your Coach Digital, 2014.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.