"atkinson, j . "
TELEPHONY:a detailed exposition of the telephone exchange...: volume i/ j.. atkinson - 1 ed. - uk : pitman 1948. - "xii, 514p.; 25 cm."
hard cover
TK6015 / .A85 1975
TELEPHONY:a detailed exposition of the telephone exchange...: volume i/ j.. atkinson - 1 ed. - uk : pitman 1948. - "xii, 514p.; 25 cm."
hard cover
TK6015 / .A85 1975