Development planning models / edited by S. Bhagwan Dahiya. Dahiya, S. Bhagwan (Shri Bhagwan), 1954- Economic policy Mathematical models. HD75.5 .D48 1982 351.0072 19 DAD Includes bibliographical references and indexes. New Delhi : Inter-India Publications, 1982. 1982. 1982 Text Vol. 1 eng