Underground and surface mining facts.

Bibliographic Details
Corporate Author:	National Institute for Occupational Safety and Health
Format:	Government Document Serial
Language:	English
Published:	Pittsburgh, PA : Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health.
Series:	DHHS publication ; no. (NIOSH)
Subjects:	Mineral industries > United States > Employees > Statistics > Periodicals. Miners > Employment > United States > Statistics > Periodicals. Mine accidents > United States > Statistics > Periodicals. Mine safety > United States > Statistics > Periodicals.
Online Access:	https://purl.fdlp.gov/GPO/gpo12807