APA Style

Drummond, H. (1991). Effective decision making : A practical guide for management / Helga Drummond (1). London: Kogan Page.

MLA Style

Drummond, Helga. "Effective decision making : A practical guide for management / Helga Drummond". 1 London: Kogan Page, 1991. Textbook ห้องสมุดทั่วไป.