00000cam a22000004a 4500 UP-99796217611322965 Buklod 20140630150512.0 a r |||| u| ta 791113s1951 enkm r a000 0|eng d (iLib)UPD-00224504598 DSCI QC 661 T7 1951 Townsend, John Sealy Edward Sir 1868- Electromagnetic waves. London New York Hutchinson's Scientific and Technical Publications 1951 60 p. illus. 19 cm. Electric waves. UPD DSCI QC 661 T7 1951 Book