Magnetic compass deviation and correction :
Denne, W.
Magnetic compass deviation and correction : a manual of the theory of the deviations and mechanical correction of magnetic compasses in ships / W. Denne. - 3rd ed. / revised by A. N. Cockcroft. - Glasgow : Brown and Ferguson, c1979. - xxi, 165 p. : ill. ; 22 cm.
Includes index.
0851743323
GB79-26445
Magnetic declination.
623.892 / DEN
Magnetic compass deviation and correction : a manual of the theory of the deviations and mechanical correction of magnetic compasses in ships / W. Denne. - 3rd ed. / revised by A. N. Cockcroft. - Glasgow : Brown and Ferguson, c1979. - xxi, 165 p. : ill. ; 22 cm.
Includes index.
0851743323
GB79-26445
Magnetic declination.
623.892 / DEN
