Introduction to underground coal mining
Subtitle: a programmed text
By: U.S. Department of Labor, Mine Safety and Health Administration
Contributors: National Mine Health and Safety Academy
Edition: Rev. 2007
Series: Programmed instruction series -- PI 1; Programmed instruction workbook -- PI 1
Publisher: U.S. Dept. of Labor, Mine Safety and Health Administration; Mine Safety and Health Administration
Published: 2007
Place of publication: [Beaver, W. Va.]
Language: eng
Subjects: Coal mines and mining -- United States -- Safety measures -- Programmed instruction; Mine safety -- United States -- Programmed instruction
Genres: Programmed instruction
Notes: Shipping list no.: 2007-0404-P