Jolley, E.H.
Introduction to telephony and telegraphy E.H.Jolley - Allahabad: Wheeler Publishing, 1992. - x, 413p.
eng
8185614369
Telephone
621.385 / JOI
Introduction to telephony and telegraphy E.H.Jolley - Allahabad: Wheeler Publishing, 1992. - x, 413p.
eng
8185614369
Telephone
621.385 / JOI