Varentsov, M. - Grasselly, M. (szerk.): Manganese deposits on continents - Geology and geochemistry of manganese 2. (Budapest, 1980)
Volume II. Manganese Desposits on Continents
GEOLOGY AND GEOCHEMISTRY OF MANGANESE Volume II MANGANESE DEPOSITS ON CONTINENTS Edited by I. M. VARENTSOV and GY. GRASSELLY AKADÉMIAI KIADÓ, BUDAPEST 1980