National Mine Health and Safety Academy
Subtitle: progress and problems : report
By: by the Comptroller General of the United States
Publisher: General Accounting Office
Published: 1978
Place of publication: Washington
Language: eng
Number of pages: 18
Subjects: National Mine Health and Safety Academy
Notes: "FPCD-78-35."

"B-170686."

Stamped on cover: April 25, 1978