TY  - BOOK
AU  - Acker,William L.
ED  - Acker
TI  - Basic procedures for soil sampling and core drilling
U1  - 624.151 
PY  - 1974///.
CY  - Scranton: 
PB  - Acker Drill, 
KW  - Soils
KW  - Testing
KW  - Sampling
KW  - Core drilling
ER  -