UNITED STATES ARMED FORCES INSTITUTE, MADISON, WIS.
End-of-course test in Radio for beginners. Course no.620.1, EM415. By members of the examinations staff, Ralph W. Tyler, director.
UNITED STATES ARMED FORCES INSTITUTE, MADISON, WIS. End-of-course test in Radio for beginners. Course no.620.1, EM415. By members of the examinations staff, Ralph W. Tyler, director. © 9Aug44; AA466326. Educational Testing Service (PWH); 9Nov71; R516222.
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