| Reference | {Deposit:: SHABAD, THEODORE, BASIC INDUSTRIAL RESOURCES OF THE U.S.S.R.}{Deposit:: COLUMBIA UNIVERSITY PRESS, NEW YORK & LONDON, 1969, PP.}{Deposit:: 229 AND 338.}{Deposit:: SMIRNOV, V. I., ORE DEPOSITS OF THE U.S.S.R., VOL. 2,}{Deposit:: PITTMAN PUBLISHING, 1977, PP. 303-306.} |