Grigorovich, Alexander S ; Sautin, Ivan V ; Ivanitsky, Ivan P ; Podgornova, Valentina M ; Lissitzky, Lazar M ; Scientific Publishing Institute of Pictorial Statistics ; Lissitsky, Lazar M
Scientific Publishing Institute of Pictorial Statistics 1939
Investigation of Lower Coal Beds in Georges Creek and North Part of Upper Potomac Basins, Allegany and Garrett Counties, Maryland: Reserves, Petrographic and Chemical Characteristics of Coals, and Stratigraphy of Area (Maps)
Grigorovich, Alexander S ; Sautin, Ivan V ; Ivanitsky, Ivan P ; Podgornova, Valentina M ; Lissitzky, Lazar M ; Scientific Publishing Institute of Pictorial Statistics ; Lissitsky, Lazar M
Scientific Publishing Institute of Pictorial Statistics 1939
Grigorovich, Alexander S ; Sautin, Ivan V ; Ivanitsky, Ivan P ; Podgornova, Valentina M ; Lissitzky, Lazar M ; Scientific Publishing Institute of Pictorial Statistics ; Lissitsky, Lazar M
Scientific Publishing Institute of Pictorial Statistics 1939