Boucher, James R. Voice teletraffic systems engineering / James R. Boucher - Boston : Artech House, c1988. - xiv, 165 p. : ill. ; 24 cm. - The Artech House telecommunication library . ISBN: 0890063354 LCCN: Subjects--Topical Terms: TelecommunicationTraffic LC Class. No.: TK5102.5 / .B684 1988