"harbottle, h r. "
the principles of telecommunications engineering vol. 1: / h.r. harbottle - 1 ed. - uk : english universities pres 1957. - "xii, 373p.; 20 cm."
hard cover
TK5101 / .H28 1957
the principles of telecommunications engineering vol. 1: / h.r. harbottle - 1 ed. - uk : english universities pres 1957. - "xii, 373p.; 20 cm."
hard cover
TK5101 / .H28 1957