TY  - BOOK
AU  - Letham,Lawrence
TI  - GPS made easy: using Global Positioning Systems in the outdoors 
SN  - 0898868238 (pbk.)
U1  - 796.510284 
PY  - 2003///
CY  - Seattle, WA
PB  - Mountaineers Books
KW  - Global Positioning System
KW  - NUST
KW  - Orienteering
KW  - Equipment and supplies
KW  - Outdoor recreation
N1  - 0; 0; 0; 796_510284000000000_LET
ER  -