Benge, E. J. (1977). How to use your physical and emotional ability to overcome your problems and reach your goals. Dow Jones-Irwin.
Dyfyniad Arddull ChicagoBenge, Eugene Jackson. How to Use Your Physical and Emotional Ability to Overcome Your Problems and Reach Your Goals. Homewood, Ill: Dow Jones-Irwin, 1977.
Dyfyniad MLABenge, Eugene Jackson. How to Use Your Physical and Emotional Ability to Overcome Your Problems and Reach Your Goals. Dow Jones-Irwin, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.