The Oil Engine Manual By Williams, D.S.D. & Millar Smith J.
The Steam Engine By Daniel Kinnear Clark
Smoley's Combined Tables Logarithms and Squares Slopes and Rises
The Modern Motor Engineer Vol I-V By Arthur W. Judge
Airship Technology By Gabriel A. Khoury & J.David Gillett (Ed.)
British Railways Diesel Traction Manual for Enginemen