Reference | {Deposit:: SMIRNOV, V. I., ED., ORE DEPOSITS OF THE USSR, PITMAN PUB-}{Deposit:: LISHING COMPANY, LONDON, 1977, P. 19-21.}{Deposit:: SHABAD, T., BASIC INDUSTRIAL RESOURCES OF THE U.S.S.R.,}{Deposit:: COLUMBIA UNIV. PRESS, NEW YORK, 1969, PP. 153, 170.} |