Thornton, William M.D.2018-08-162018-08-161983-01-05http://hdl.handle.net/2152.3/9878A United States Government Memorandum written by Dr. Thornton to Henry Flagg regarding a waiver for restrictions on purchases from a vendorDr. William ThorntonresearchexerciseHenry FlaggNASAUnited States Government MemorandumDel Mar Avionics