Protection factors of the airstream helmet
By: by Andrew B. Cecala ... [et al.].
Contributors: Cecala, Andrew B.
Series: Report of investigations ;; 8591; Report of investigations (United States. Bureau of Mines) ;; 8591.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1981
Place of publication: Avondale, MD
Language: eng
Number of pages: 17
Subjects: Mine safety -- Equipment and supplies.; Mine dusts.; Helmets.
Notes: Includes bibliographical references.