Signal : communication tools for the information age /

Bibliographic Details
Other Authors:	Kelly, Kevin, 1948-
Format:	Book
Language:	English
Published:	New York, NY : Harmony Books, 1988.
Edition:	1st ed.
Subjects:	Telecommunication > Equipment and supplies > Catalogs.

Description
Item Description:	"A Whole earth catalog." Includes index.
Physical Description:	226 pages : illustrations
ISBN:	0517570831 :