TY  - BOOK
TI  - McGraw-Hill Encyclopedia of Science and Technology : Vol.VIII : GEO-HYS
SN  - 978-0-07-144143-8
U1  - 503 
PY  - 2007///
CY  - Kolkata
PB  - McGraw-HIll
KW  - ENCYCLOPEDIA
KW  - SCIENCE AND TECHNOLOGY
N1  - Reference Book
ER  -