TY  - BOOK
AU  - Varent︠s︡ov, I. M.
TI  - Sedimentary manganese ores
AV  - TN490.M3 V3
U1  - 553.46 
PY  - 1964///
CY  - Amsterdam, New York
PB  - Elsevier Pub. Co.
KW  - Manganese ores
KW  - Russia (Federation)
KW  - Siberia
N1  - Includes bibliographical references and index
ER  -