Canfield, J., Switzer, J., & Campbell, D. (2015). The success principles: How to get from where you are to where you want to be (10th anniversary edition.). Harper Audio.
Цитирование в стиле Чикаго (17-е изд.)Canfield, Jack, Janet Switzer, и Danny Campbell. The Success Principles: How to Get from Where You Are to Where You Want to Be. 10th anniversary edition. [New York]: Harper Audio, 2015.
Цитирование MLA (8-е изд.)Canfield, Jack, et al. The Success Principles: How to Get from Where You Are to Where You Want to Be. 10th anniversary edition. Harper Audio, 2015.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.