TY  - GEN
AU  - Bellis, Herbert F.
AU  - Schmidt, Walter A.
AU  - 
TI  - Blueprint reading for the construction trades
U1  - 744.5 
PY  - 1968///
CY  - New York
PB  - Mcgraw-Hill Book
KW  - Costruction Maps
KW  - Sites
ER  -