TY  - BOOK
AU  - Duggal ,S K
TI  - Design of steel structures / 
SN  - 0074630954
PY  - 2000///
CY  - New Delhi : 
PB  - Tata mcgrow-hill publishing company limited : 
KW  - Building, Iron and steel
N1  - Includes bibliographic references and index
ER  -