TY  - BOOK
AU  - Nichols,Herbert L.
TI  - Moving the earth:  : the workbook of excavation
AV  - TA735 N53 1962
PY  - 1962///
CY  - Greenwich, Connecticut
PB  - North Castle Books
KW  - lemb
KW  - Excavadoras
N1  - Incluye apéndice, glosario e índice
ER  -