Παραπομπή APA

Eden, C., Jones, S., & Sims, D. (1983). Messing about in problems: An informal structured approach to their identification and management. Oxford: Pergamon Press.

Παραπομπή Chicago Style

Eden, Colin., Sue Jones, and David Sims. Messing About in Problems: An Informal Structured Approach to Their Identification and Management. Oxford: Pergamon Press, 1983.

Παραπομπή MLA

Eden, Colin., Sue Jones, and David Sims. Messing About in Problems: An Informal Structured Approach to Their Identification and Management. Oxford: Pergamon Press, 1983.

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