Mahalanobis, P.C..
Approach of Operational Research to Planning in India / - Reprinted 1965 / - Bombay : Asia Publishing House. - p.168 :
X:75.44:g / K3;3
Approach of Operational Research to Planning in India / - Reprinted 1965 / - Bombay : Asia Publishing House. - p.168 :
X:75.44:g / K3;3