Παραπομπή APA

Spencer, M. H., & Siegelman, L. (1959). Managerial economics: Decision making and forward planning. Homewood, IL: Irwin.

Παραπομπή Chicago Style

Spencer, Milton H., and Louis Siegelman. Managerial Economics: Decision Making and Forward Planning. Homewood, IL: Irwin, 1959.

Παραπομπή MLA

Spencer, Milton H., and Louis Siegelman. Managerial Economics: Decision Making and Forward Planning. Homewood, IL: Irwin, 1959.

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