TY - BOOK AU - Mahalanobis, P C TI - Sankhya: the Indian Journal of statistics U1 - 338.91072 21st PY - 1955/// CY - Calcutta PB - Statistical Publishing Sociwty KW - India-Economic policy; Economic survey-India N1 - Contents:V.16.pt.1 and 2. The Approach of operational research to planning in India ER -