The Design of Airplane-Engine Superchargers, report, October 1937; (https://digital.library.unt.edu/ark:/67531/metadc63351/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
The Design of Airplane-Engine Superchargers, report, October 1937; (https://digital.library.unt.edu/ark:/67531/metadc63351/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .