TY  - BOOK
ED  - NATIONAL BUILDING ORGANISATION
TI  - NBO ABSTRACTS; VOL 22; 1977
U1  - 624 
PY  - 1977///
CY  - NEW DELHI
PB  - NATIONAL BUILDING ORGANISATION
KW  -  NATIONAL BUILDING ORGANISATION ABSTRACTS
KW  - CIVIL ENGINEERING
ER  -