TY  - BOOK
AU  - Parker Albert D
AU  -  Barrie Donald S
AU  -  Snyder Robert M
TI  - Planning and estimating heavy construction
U1  - X9(D3):75.73'N8, M4 
PY  - 1984///
CY  - New York  
PB  -  Mcgraw-Hill Book Co.    
ER  -