John.F Wostrel. (1931). The Radio handbook. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoJohn.F Wostrel. The Radio Handbook. New York: McGraw-Hill, 1931.
Deismireacht MLAJohn.F Wostrel. The Radio Handbook. New York: McGraw-Hill, 1931.
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