by F. Beyschlag, J.H.L. Vogt, P. Krusch ; translated by S.J. Truscott

Macmillan 1914 The deposits of the useful minerals & rocks : their origin, form, and content / by F. Beyschlag, J.H.L. Vogt, P. Krusch ; translated by S.J. Truscott vol. 1

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