Lange, Oskar.
On the Economic Theory of Socialism / - 1st ed / - New Delhi : Tata McGraw-Hill Publishing Company Ltd. , 1987 - p.143 :
XM2 / G8,L6
On the Economic Theory of Socialism / - 1st ed / - New Delhi : Tata McGraw-Hill Publishing Company Ltd. , 1987 - p.143 :
XM2 / G8,L6