00758nam a2200241 a 4500 69053 BD-RjUL 20211209081838.0 170409s1914 enka 001 0 e d (BD-RjUL)69264 BD-RjUL eng BD-RjUL eng 23 622.33 KEP 1914 Kerr, George L. 204574 Practical coal mining : A manual for managers under-managers, colliery engineers, and others / George L. Kerr. 5th rev. ed. London : Charles Griffin, 1914. xi, 778 p. : ill. ; 20 cm. Includes Indexes Coal mines and mining 204575 Physics Engineering Mining pre20 204580 ddc BK 69053 69053 0 0 ddc 0 1 NFIC RUCL RUCL Reading 2021-12-09 BNBC 0.00 0 622.33 KEP 1914 2017-04-09 00:00:00 C-1 2017-04-09 BK