Παραπομπή APA

Drummond, H. (1993). Effective decision making: A practical guide for management. Wheeler Publishishing.

Παραπομπή Chicago Style

Drummond, Helga. Effective Decision Making: A Practical Guide for Management. Allahabad: Wheeler Publishishing, 1993.

Παραπομπή MLA

Drummond, Helga. Effective Decision Making: A Practical Guide for Management. Wheeler Publishishing, 1993.