Hansel, T. (1988). Eating problems for breakfast: A simple, creative approach to solving any problem. Word Publishing.
Citazione stile Chigago Style (17a edizione)Hansel, Tim. Eating Problems for Breakfast: A Simple, Creative Approach to Solving Any Problem. Dallas, TX: Word Publishing, 1988.
Citatione MLA (9a ed.)Hansel, Tim. Eating Problems for Breakfast: A Simple, Creative Approach to Solving Any Problem. Word Publishing, 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.