National productivity council. (1961). Marketing and distribution in U.K. and U.S.A. and West Germany TR-8. N.P.C.
Παραπομπή Chicago StyleNational productivity council. Marketing and Distribution in U.K. and U.S.A. and West Germany TR-8. New Delhi: N.P.C, 1961.
Παραπομπή MLANational productivity council. Marketing and Distribution in U.K. and U.S.A. and West Germany TR-8. N.P.C, 1961.
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