Zionts,S. (1978). Multiple criteria problem solving: Proceedings of a conference Buffalo,N.Y.(U.S.A.), August 22-26,1977. Springer - Verlag.
Dyfyniad Arddull ChicagoZionts,S. Multiple Criteria Problem Solving: Proceedings of a Conference Buffalo,N.Y.(U.S.A.), August 22-26,1977. Berlin: Springer - Verlag, 1978.
Dyfyniad MLAZionts,S. Multiple Criteria Problem Solving: Proceedings of a Conference Buffalo,N.Y.(U.S.A.), August 22-26,1977. Springer - Verlag, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.