Snedden, Robert.

The medieval world / Robert Snedden. - Collingwood, Ont. : Saunders Book Company, 2009. - 46 p. : col. ill. ; 29 cm. - Technology in times past .

Includes bibliographical references and index.

ISBN: 9781897563656

Subjects--Topical Terms:
Inventions--Europe--To 1500
Technology--History--Europe--To 1500
Civilization, Medieval.
Science, Medieval.