Direccion de Minas. Venezuela. Ministerio de minas e hidrocarburos
Gas advances [midline ellipsis] 1943 year of marked achievement despite war
Rhine river shipping and harbors in 1935
The trials of transport in the oilfields
Economies of automotive transportation
Considerations on steel industry of Japan
Total lake ore shipments near record
Iron ore shipments show increase for all districts in 1929
Early problems of marketing and transportation were overcome as they developed
French field narrows as leaders strengthen
South America large buyer of airplanes
Mystic furnace complains of pig iron freight rates
The British automobile industry in 1926
The coal fields and seaports of the United States