Mining directory of Minnesota - Minnesota University. School of Mineral and Metallurgical Engineering (Minneapolis : The University, 1920)
Issued 1923 - as "Bulletin of the university of Minnesota"
Library has : v. 70 - 72, 1967 - 1969 ; v. 75 - 76, 1972 - 1973 ; 1979 ; 1980 ; 1981 ; 1982 ; 1983 ; 1984 ; 1985 ; 1986 ; 1987 ; 1988 ; 1989
Keywords: Coals -- Periodicals; Coal miners -- Periodicals; Mines and mining -- Periodicals; Coal mines and mining -- Periodicals