MINERALS YEARBOOK 1939
UNITED STATES DEPARTMENT OF THE INTERIOR
MINERALS YEARBOOK 1939 - 0 - WASHINGTON-USA U.S.GOVERNM.PRINT.OFFICE 1939 - 1437 pag. 24 cm - 0 0 .
ESTADISTICA-MINERALES/ILUSTRACIONES-MAPAS
OBRAS GENERALES
050.549 / U61
MINERALS YEARBOOK 1939 - 0 - WASHINGTON-USA U.S.GOVERNM.PRINT.OFFICE 1939 - 1437 pag. 24 cm - 0 0 .
ESTADISTICA-MINERALES/ILUSTRACIONES-MAPAS
OBRAS GENERALES
050.549 / U61
