330.900724
D275I
           Dayal, Ram
               An Integrated system of world models With separate models for economic growth population and labour force, energy, food and agriculture machinery and equipment and raw material \ Ram Dayal - Amsterdam : North-Holland, 1981.
               xviii, 398p. - North-Holland systems and control series/ed by M G Singh, P Varaiya, and M Aizerman; V.2 .
                ISBN: 0-444-86272-2

119169
                Subjects: Economic history-1945-Mathematical models; Economic-Mathematical models; Economic Development-Mathematical models.