TY  - BOOK
AU  - Gladstone,John
TI  - Mechanical estimating guidebook / : John Gladstone 
SN  - 0070233187
AV  - TH7687 .G55 1970
U1  - 621 
PY  - 1970///
CY  - New York
PB  - McGraw-Hill
KW  - Air conditioning
KW  - Estimates
N1  - Previous editions published under title: Mechanical estimator's guide; Includes bibliographical references
ER  -