Principal Facts of the Earth's Magnetism and Methods of Determining the True Meridian and the Magnetic DeclinationU.S. Government Printing Office, 1919 - 100 páginas |
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Principal Facts of the Earth's Magnetism and Methods of Determining the True ... U S Coast and Geodetic Survey No hay ninguna vista previa disponible - 2016 |
Términos y frases comunes
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