Gelb, M. J., & Buzan, T. (1994). Lessons from the art of juggling: How to achieve your full potential in business, learning, and life. New York: Harmony Books.

Gelb, Michael J., and Tony Buzan. Lessons From the Art of Juggling: How to Achieve Your Full Potential in Business, Learning, and Life. New York: Harmony Books, 1994.

Gelb, Michael J., and Tony Buzan. Lessons From the Art of Juggling: How to Achieve Your Full Potential in Business, Learning, and Life. New York: Harmony Books, 1994.