TY  - BOOK
AU  - Wang, Hui-nan
TI  - GPS navigation / 
SN  - 9781842655634
U1  - 621.38 22
PY  - 2013///
CY  - Beijing : 
PB  - Alpha Science International, 
KW  - Global Positioning System. - GPS space constellation
N1  - Include Index
ER  -