lohr, v. (1974). problems of determining the role of agriculture in the development of national economy and society. the institute of national planning.
Dyfyniad Arddull Chicagolohr, v. Problems of Determining the Role of Agriculture in the Development of National Economy and Society. cairo: the institute of national planning, 1974.
Dyfyniad MLAlohr, v. Problems of Determining the Role of Agriculture in the Development of National Economy and Society. the institute of national planning, 1974.