TY  - BOOK
AU  - Ramaswamy, G.S
TI  - Design and construction of concrete shell roofs 
SN  - 81-239-0990-X
U1  - 695 
PY  - 2005///
CY  - New Delhi
PB  - C B S Publishers and Distributors
KW  - Engineering
KW  - Roof covering
ER  -