TY  - BOOK
AU  - United Naitons Industrial development Organizaiton
ED  - United Naitons Industrial development Organizaiton
TI  - Information surces on the cement and concrete industry
T2  - Its gudies to informaiton sources.2
U1  - "24(X9(D35)g, L7/UN" 
PY  - 1977///
CY  - New
PB  - York United Naitons USA    
KW  - Library Sicence
N1  - Bib p. 88-9
ER  -