TY  - BOOK
AU  - Dreiblatt David
TI  - Economics of heavy earthmoving
T2  - Praeger Special Studies In International Economic And Development
U1  - X9(D2)-65291, L2 
PY  - 1972///
CY  - New York
PB  - Praeger U S A      
KW  - Engneering
ER  -