Hansel, T. (1988). Eating problems for breakfast: A simple, creative approach to solving any problem. Word Publishing.
Cita Chicago (17th ed.)Hansel, Tim. Eating Problems for Breakfast: A Simple, Creative Approach to Solving Any Problem. Dallas, TX: Word Publishing, 1988.
Cita MLA (9th ed.)Hansel, Tim. Eating Problems for Breakfast: A Simple, Creative Approach to Solving Any Problem. Word Publishing, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.