En
RuGeology
Geology
Izvestiya of the Imperial Tomsk University. Book. 17 1900
Izvestiya of the Imperial Tomsk University. Tomsk: Steam typo-lit. P.I. Makushina.
The book. 17 1900: Book. 17 1900. 1900.
The book. 17 1900: Book. 17 1900. 1900.
1900
СПбГУ
On petrography of Altai / A. M. Zaitsev (scans 465-481)