SOUL Catalog فهرس المكتبة المركزية لجامعة 6 أكتوبر

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Smith, Sydney F.

Telephony & telegraphy A: an introduction to telephone and telegraph instruments and exchanges, / [Book :] by Sydney F. Smith. - 1st.ed. - London, : Oxford U.P., 1969. - xv, 285 p. : illus. ; 25 cm.

Third ed. published in 1978 under title: Telephony and telegraphy.

Bibliography: p. [263].

All age.

ISBN: 0198593058

LCCN: 70436707

Nat. Bib. No.: B69-20604

Subjects--Topical Terms:
Telephone.
Telegraph.

LC Class. No.: TK6161 / .S6

Dewey Class. No.: 621.38