Karta poleznykh iskopaemykh paĭona Donbassa i Krivogo Roga / sostavleno sektorom fondov GGRU v 1930 g. ; ispolneno goskartogeodezieĭ pri Institute Geodezii i Kartografii GGU VSNKH-SSSR.[1930?]In lower left corner of margin: Leningradskiĭ Oblastlit No. 2212.In upper left corner of margin: Atlas Promyshlennosti Vyp. III.In upper right corner of margin: 6.cartographic