Coal age operating handbook of underground mining / edited by Nicholas P. Chironis - New York : Coal Age Mining Informational Services, 1977 - 410 p. : ill. ; 28 cm. - Coal age library of operating handbooks ; vol. 1 . Includes index ISBN: 0070114579 LCCN: 77-85375 Subjects--Topical Terms: Coal mines and mining--Handbooks, manuals, etc.