TY  - BOOK
AU  - Alfeld,Louis Edward
TI  - Construction productivity : : on-site measurement and management 
SN  - 0070010277
U1  - 624.0685 20
PY  - 1988///
CY  - New York
PB  - McGraw-Hill
KW  - Constrution
N1  - Includes index
ER  -