TY  - BOOK
AU  - Charles I. Hellman
TI  - Elements of radio. Ed 3
U1  - 621.3841 
PY  - 1956///
CY  - London
PB  - D.Van Nostrand Company Inc
N1  - Charles I. Hellman: Elements of radio. Ed 3.  (3rd Edition)  London.  D.Van Nostrand Company Inc, 1956.--(621.3841HEL)
ER  -