TY  - BOOK
AU  - Cumming,James D.
AU  - Wicklund,A.Percy
TI  - Diamond drill handbook
PY  - 1980///
CY  - Toronto, Canada
PB  - J.K.Smit
KW  - Boring
KW  - Boring machinery
N1  - 3rd ed. 1975; With:Diamond drill chart; Bibliography : p. 508-512; Includes index
ER  -