TY  - BOOK
AU  - Hurn,Jeff
TI  - GPS: a guide to the next utility 
U1  - 629.045 /H9661/08.3.137 
CY  - #¿NOMBRE?
KW  - GLOBAL POSITIONING SYSTEM. SATELLITE. NAVIGATION. ARTIFICAL SATELLITES IN NAVIGATION. GLOBAL POSITIONING SYSTEM. ARTIFICIAL SATELLITES IN NAVIGATION
ER  -