"ryder, john d. "
"network,lines & fields: / john.d. ryder" - 2 ed. - englewood (nj) : prentice-hall 1955. - "xi, 593p.; 22 cm."
hard cover
telecommunication--data transmission systems
621. 38 ryd
"network,lines & fields: / john.d. ryder" - 2 ed. - englewood (nj) : prentice-hall 1955. - "xi, 593p.; 22 cm."
hard cover
telecommunication--data transmission systems
621. 38 ryd