TY  - BOOK
AU  - Nichols,Herbert L.
AU  - Schwagerman,Helen
TI  - Modern techniques of excavation
U1  - 624.152 
PY  - 1956///
CY  - Connecticut
PB  - North castle Books
KW  - Excavation
KW  - Earthwork
KW  - Civil engineering
N1  - Includes index
ER  -