Hegedus, Alannah.

Bleeps and blips to rocket ships : great inventions in communications / Alannah Hegedus, Kaitlin Rainey ; illustrated by Bill Slavin. - Toronto : Tundra Books, 2001. - 88 p. : col. ill. ; 26 cm.

Includes index.

ISBN: 0887764525 : $19.99

Subjects--Topical Terms:
Inventions--History.--Canada
Communication--History.--Canada
Telecommunication--History.--Canada
Inventors--Canada.

Dewey Class. No.: j609.71