Locks & keys
By: by Gail Gibbons.
Edition: 1st ed.
Publisher: Crowell
Published: 1980
Place of publication: New York
Language: eng
Number of pages: 32
Subjects: Locks and keys -- Juvenile literature.; Locks and keys.
Description: Traces the history of locks and keys from ancient times to the present, describing the development of increasingly complex and pick-proof locks and how they work.