Global navigation : a GPS user's guide /
Ackroyd, Neil.
Global navigation : a GPS user's guide / Neil Ackroyd and Robert Lorimer. - 2nd ed. - London : Lloyd's of London Press, 1994. - xxii, 196 p. : ill., maps ; 24 cm.
Includes bibliography and index.
1850445176
Global Positioning System.
Artificial satellites in navigation.
629.045
Global navigation : a GPS user's guide / Neil Ackroyd and Robert Lorimer. - 2nd ed. - London : Lloyd's of London Press, 1994. - xxii, 196 p. : ill., maps ; 24 cm.
Includes bibliography and index.
1850445176
Global Positioning System.
Artificial satellites in navigation.
629.045