Dalkey, N. C. (1972). Studies in the quality of life: Delphi and decision-making. Lexington Books.
Dyfyniad Arddull ChicagoDalkey, Norman Crolle. Studies in the Quality of Life: Delphi and Decision-making. Lexington, Mass: Lexington Books, 1972.
Dyfyniad MLADalkey, Norman Crolle. Studies in the Quality of Life: Delphi and Decision-making. Lexington Books, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.