The effect of altitude on bomber performance, report, October 1943; (https://digital.library.unt.edu/ark:/67531/metadc60853/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
The effect of altitude on bomber performance, report, October 1943; (https://digital.library.unt.edu/ark:/67531/metadc60853/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .