A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
New method of research is discussed with reference to papers by E. ZSCHEMMER on ruby gold, and nature of ruby-gold formation, indexed in Engineering Index 1930, p. 833.
New method of research is discussed with reference to papers by E. ZSCHEMMER on ruby gold, and nature of ruby-gold formation, indexed in Engineering Index 1930, p. 833.
Ruby gold
Ueber Rubin
Schrader, H. (author)
Sprechsaal ; 64
1931
Article (Journal)
German
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Gold dredging near Ruby, Montana
Engineering Index Backfile | 1911
| Engineering Index Backfile | 1966
TIBKAT | 1.1866,3 - 1.1866,5; mehr nicht digitalisiert
| TIBKAT | 2012
UB Braunschweig | 1.1866,3 - 1.1866,5; mehr nicht digitalisiert