The Numerical Relation Between the Zones and Faces of a Polyhedron

E. S. Fedorov

Professor of Crystallography in the Institute of Mines, Petrograd.

Mineralogical Magazine; June 1917 v. 18; no. 84; p. 99-100; DOI: 10.1180/minmag.1917.018.84.03
© 1917, The Mineralogical Society
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