TY  - BOOK
AU  - Sickle, Jan Van  .
TI  - Gps for land surveyors / 
SN  - 0-415-29962-4
U1  - U181 
PY  - 2001///
CY  - London : 
PB  - Taylor & Francis Ltd. , 
KW  - Global Positioning system
ER  -