TY  - BOOK
AU  - Nichols,Herbert L.
AU  - Schwagerman,Helen
AU  - Romeo,Joseph A.
TI  - Moving the earth: the workbook of excavation 
SN  - 0070464839
AV  - TA730  .N52 1976
PY  - 1976///
CY  - New York
PB  - McGraw-Hill
KW  - Earthwork
KW  - Earthmoving machinery
KW  - Excavation
ER  -