el tigi, A., & mongy, m. A. (1965). towards a system for determining industrial development priorities. the institute of national planning.
Dyfyniad Arddull Chicagoel tigi, A.S.A, and mohamed A. mongy. Towards a System for Determining Industrial Development Priorities. cairo: the institute of national planning, 1965.
Dyfyniad MLAel tigi, A.S.A, and mohamed A. mongy. Towards a System for Determining Industrial Development Priorities. the institute of national planning, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.