Buscar : Título Autor Tema Serie que comienza con: 10 20 30 50 100 por página < Encabezamientos 10 anteriores Encabezamientos 10 siguientes > Consultar encabezamientos # Report of investigations (United States. Bureau of Mines) 3 Report of investigations (United States. Bureau of Mines) ; 6210. 1 Report of investigations (United States. Bureau of Mines) ; no. 2776. 1 Report of investigations (United States. Bureau of Mines) ; no. 2808. 1 Report of investigations (University of Texas at Austin. Bureau of Economic Geology) 11 SEE ALSO earlier heading: Report of investigations (University of Texas. Bureau of Economic Geology) 6 Report of investigations (University of Texas at Austin. Bureau of Economic Geology) ; no. 60. 1 Report of investigations (University of Texas at Austin. Bureau of Economic Geology) ; no. 69. 1 Report of investigations (University of Texas at Austin. Bureau of Economic Geology) ; no. 78. 1 Report of investigations - University of Texas at Austin, Bureau of Economic Geology ; no. 81 1 Report of investigations (University of Texas at Austin. Bureau of Economic Geology) ; no. 89. 1 10 20 30 50 100 por página < Encabezamientos 10 anteriores Encabezamientos 10 siguientes >