Instructor training course /
U.S. Dept. of Labor, Mine Safety and Health Administration, Education and Training Directorate.
|Corporate Author:||United States.|
[Pittsburgh, Pa.] : The Directorate, 1979.
Teachers / Training of /
Mining schools and education > Mining schools and education / United States.
v, 107,  p. :
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|Item Link||Original Source|
||University of Illinois at Urbana-Champaign|