.245
a	Coal Age Operating Handbook of Underground Mining
h	Book
.020
a	0-7-011457-9
.100
a	Chironis, Nicholas P.
.005
a	20100925105103
.260
a	New York
b	McGraw-Hill
c	1977
.041
a	Indonesia
.084
a	622.72 CHI c
.336
a	Book