TY  - BOOK
AU  - Konkel,James H.
TI  - Rule-of-thumb cost estimating for building mechanical systems: accurate estimating and budgeting using unit assembly costs 
SN  - 0070449570
U1  - 697 19
PY  - 1987///
CY  - New York
PB  - McGraw-Hill
KW  - Heating
KW  - Estimates
KW  - Air conditioning
KW  - Ventilation
KW  - Fire detectors
N1  - Includes index
ER  -