Bradford Howland, Walter H. Pits, and Robert C. Gesteland.
"September 21, 1962."
Bibliography: p. 28.
Army Signal Corps Contract DA36-039- sc-78108. Dept. of the Army Task 3-99-20-001 and Project 3-99-00-000. Signal Corps Contract DA-SIG-36-039-61-G14. U.S. Air Force Contract AF33(616)-7783. National Institute of Health Grant B-2480(C1)