TY  - BOOK
AU  - 
TI  - Diamond Drill Handbook
U1  - 622.2 CUM 1st.ed.
PY  - 1951///
CY  - Toronto
PB  - J.K. Smit & Sons of Canada
KW  - Rock Drills
KW  - Diamonds
KW  - Industrials
N1  - Includes indexs ( p.: 493 - 501 )
ER  -