GPS : a guide to the next utility
Title:
GPS : a guide to the next utility
Author:
Hurn, Jeff.
Personal Author:
Publication Information:
76 p. : ill., 22 cm.
Physical Description:
[Sunnyvale, CA : Trimble Navigation Ltd., 1989]
General Note:
Global Positioning System is based on a constellation of 24 satellites orbiting the earth at a very high altitude.
Added Corporate Author: