00570nam a22001937a 4500 8992 OCLRC 20260730103730.0 190226t xxu||||| |||| 00| 0 eng d 9780716603825 OCLRC HS Ref 302.2 C737 2009 Inventions and discoveries: communication/ Chicago: World Book, Inc., 2009. col.: ill.; 27. Includes index. Communication--Technological innovations--History--Juvenile literature. BOOK HS Ref 302.2 C737 2009 8992 8992 0 0 0 0 LRC HS 2026-07-30 0 HS Ref 302.2 C737 2009 HS 001704 2026-07-30 10:37:30 2026-07-30 BOOK