TY  - BOOK
AU  - United Nations Economics and social affaris (Department of-)
ED  - United Nations Economics and social affaris (Department of-)
TI  - Industrial and productivity bulletin
U1  - X9:2.1.N5, K1(906) 
PY  - 1961///
CY  - NA
PB  - NA       
KW  - ECONOMICS
ER  -