Koberg, D., & Bagnall, J. (1990). The all new universal traveler: A soft-systems guide to creativity, problem-solving, and the process of reaching goals (Rev. ed.). Crisp.
Chicago-Zitierstil (17. Ausg.)Koberg, Don, und Jim Bagnall. The All New Universal Traveler: A Soft-systems Guide to Creativity, Problem-solving, and the Process of Reaching Goals. Rev. ed. Los Altos, Calif: Crisp, 1990.
MLA-Zitierstil (9. Ausg.)Koberg, Don, und Jim Bagnall. The All New Universal Traveler: A Soft-systems Guide to Creativity, Problem-solving, and the Process of Reaching Goals. Rev. ed. Crisp, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.