TY  - BOOK
AU  -  Coates,D.F.
AU  -  Cochrane,T.S.
TI  -  Development of design specifications for rock bolting from research in Canadian mines / 
T2  -  Canada. Mines Branch. Research report ; 
PY  - 0000/// 1 970
CY  -  Ottawa : 
PB  -  Dept. of Energy, Mines and Resources, Mines Branch, 
KW  -  Mine roof bolting
KW  -  Rock bolts
N1  -  Bibliography: (p. 22-24)
ER  -