On the geology of the copper ore field in the Virtasalmi area, Eastern Finland
By: Lauri Hyvärinen
Contributors: Helsingin yliopisto
Series: Bulletin de la Commission géologique de Finlande -- 240
Publisher: Geologinen tutkimuslaitos
Published: 1969
Place of publication: Otaniemi
Language: eng
Number of pages: 82
Notes: With 44 figures and 17 tables in text and one appended map.

Thesis (doctoral)--University of Helsinki, 1969.