Dyfyniad APA

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

Dyfyniad Arddull Chicago

Drummond, Helga. Effective Decision Making: A Practical Guide Tor Management. Allahabad: Wheeler Publishing, 1993.

Dyfyniad MLA

Drummond, Helga. Effective Decision Making: A Practical Guide Tor Management. Wheeler Publishing, 1993.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.