Annual Report for the Year .... (Colorado Bureau of Mines).
NR9/200.1/INTERNET
Annual Report for the Year .... (Colorado Bureau of Mines).
Library has 1953-1965.
Report for the Years .... (Colorado Bureau of Mines).
Library has 1950/51 and 1952.
Annual Report for the Year .... (Colorado Bureau of Mines).
Library has 1919-1924, 1926, 1927, 1929-1935, 1937, 1939, 1941, 1942/43, 1946, 1947.
Biennial Report Issued by the Bureau of Mines of the State of Colorado for the Years ....
Library has 1915/16 and 1917/18.
Biennial Report of the Bureau of Mines of the State of Colorado for the Years ....
Library has 1911/12 and 1913/14.
Report of the State Bureau of Mines for the Year ....
Library has 1897-1909/10.
Report of Bureau of Mines.
Library has 1896.
Biennial Report of the State Inspector of Metalliferous Mines.
Library has 1893/94.
