TY  - BOOK
AU  - HOFMANN-WELLENHOF B
AU  - COLLINS J
AU  - LICHTENEGGER H
TI  - GLOBAL POSITIONING SYSTEM
SN  - 9.78818E+12
U1  - 623.893 HOF 
CY  - NEW DELHI
KW  - CIVIL ENGG
KW  - GLOBAL POSITIONING
N1  - UNDER TEQIP PHASE - II
ER  -