APA
Gupta N.C, University of Delhi. Faculty of Social Science. Department of Economics & University of Delhi. Faculty of Social Science. Department of Economics. (1981). Productivity investment and import sustituation in non-ferrous metals industries. : .
Chicago
Gupta N.C, University of Delhi. Faculty of Social Science. Department of Economics and University of Delhi. Faculty of Social Science. Department of Economics. 1981. Productivity investment and import sustituation in non-ferrous metals industries. : .
Harvard
Gupta N.C, University of Delhi. Faculty of Social Science. Department of Economics and University of Delhi. Faculty of Social Science. Department of Economics. (1981). Productivity investment and import sustituation in non-ferrous metals industries. : .
MLA
Gupta N.C, University of Delhi. Faculty of Social Science. Department of Economics and University of Delhi. Faculty of Social Science. Department of Economics. Productivity investment and import sustituation in non-ferrous metals industries. : . 1981.