Notes on geomagnetic observatory and survey practice
Wienert, K. A.
Notes on geomagnetic observatory and survey practice K. A. Wienert - Paris UNESCO 1970 - 217p.
9231008161
Geomagnetic ObservatoryObservations,geomagneticObservatory-geomagnetic-setup
550.380.2 / WIE
Notes on geomagnetic observatory and survey practice K. A. Wienert - Paris UNESCO 1970 - 217p.
9231008161
Geomagnetic ObservatoryObservations,geomagneticObservatory-geomagnetic-setup
550.380.2 / WIE