00778nam a22002777a 4500 CHAP 20220329134153.0 971013s1952 r 00010 d 16483 17455 21538 CHAP 621.384 H67 Hornung Julius Lawrence. 56267 Radio aperating, questions and answers 11 ed. New York : McGraw-Hill, 1952 557 p. : ilus. BATCH-UPD 10 20130110 UCH01 1123 CONVERSION 10 20130109 UCH01 1310 Radio. 93686 McKenzie, Alexander A. 73640 BK LIBRO 621.384 H67 BC LIBRO 33724000016309 LIBRO 18618 21538 i 16483 16483 0 0 ddc 0 2 0 GRAL BC BC PP_GRAL 2019-12-31 LIBRO 0 621.384 H67 33724000016309 2019-12-31 00:00:00 2019-12-31 LIBRO