un economic & social council. (1966). A selected annotated bibliography of united nations publications and documents on general and methodology aspects of development planning. the institute of national planning.
Dyfyniad Arddull Chicagoun economic & social council. A Selected Annotated Bibliography of United Nations Publications and Documents on General and Methodology Aspects of Development Planning. cairo: the institute of national planning, 1966.
Dyfyniad MLAun economic & social council. A Selected Annotated Bibliography of United Nations Publications and Documents on General and Methodology Aspects of Development Planning. the institute of national planning, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.