Stamper, David A. Business data communications / David A. Stamper. - 3rd. ed. - Redwood City, Calif. : Benjamin/Cummings Pub.Co., c1991 - xxxix, 620 p. : ill. (some col.) ; 25 cm. ISBN: 0805377204 Subjects--Topical Terms: Data transmission systems. 2. Business enterprises -- Computer networks. Dewey Class. No.: 004.6 STA