00686cam a2200217 4500 681404490 TxAuBib 001108s2002||||||||||||||||||||||||eng|u 00012381 9781588102096 lib. binding 1588102092 lib. binding DLC DLC DLC TxAuBib Williams, Brian, 1943- Communications / Brian Williams. Chicago, Ill. : Heinemann Library, 2002. 48 p. : col. ill. ; 26 cm. Great inventions Includes bibliographical references (p.47) and index. Communication Juvenile literature. Communication. Great inventions.