Reference | VENKOV, D.A., 1970, ARGILLACEOUS FORMATIONS OF THE BAUXITE-BEARING SERIES IN THE WESTERN PART OF THE TURGAI BASIN: IN OSSLEDOVANIYE I ISPO*- ZOVANIYE GLIN I GLINISTYKH MINERALOV, AKAD. NAUK SSR-AKAD. NAUK KAZ. SSR, ALMA-ALTA, P. 167-173, ILLUS |