"atkinson, j . "
telephony:a detailed exposition of the telephone exchange...: volume ii/ j.. atkinson - 1 ed. - uk : pitman 1950. - "xii, 873p.; 25 cm."
hard cover
--
621. 385 atk
telephony:a detailed exposition of the telephone exchange...: volume ii/ j.. atkinson - 1 ed. - uk : pitman 1950. - "xii, 873p.; 25 cm."
hard cover
--
621. 385 atk