Technisch-wirthschaftliche Revolutionen der Gegenwart
ADMINISTRATIVE ENGINEERING AND SALESMANSHIP IN THE COMMERCIAL CAR FIELD
CALCULATING DEPRECIATION OF COMMERCIAL AUTOMOBILES
Naval aircraft factory at Philadelphia
Official history of aircraft production
THE UNMINED SUPPLY OF PETROLEUM IN THE UNITED STATES1
How the NC boats were built under pressure of war need -- II
Standardization in aircraft construction
The metric system and the aeronautical industry
Single government department for all aeronautics urged by Mission