TY  - BOOK
AU  - Williams,W.Randolph
TI  - Mine mapping and layout
SN  - 0135836174
U1  - 622.14 
PY  - 1983///
CY  - New Jersey
PB  - Prentice-Hall
KW  - Mine surveying
KW  - Mine maps
N1  - Includes index
ER  -