TY  - BOOK
AU  -  Gardner,A.E.
ED  -  Canada. Dept. of Energy, Mines and Resources Mines Branch.
TI  -  Bibliography on rock bolting methods in mining practice : :  abstrac ts from world literature, 1958 to end of 1967 / 
PY  - 1970///
CY  -  Ottawa : 
PB  -  Queen'd Printer, 
KW  -  Mine roof bolting
N1  -  Includes bibliographic references
ER  -