Brackin, A        J. <br/><br/>
Clocks :  chronicling time / 
by A.J. Brackin. 
 - San Diego, CA :  Lucent,  1991. 
 - 96 p. :  ill. 
 - The Encyclopedia of discovery and invention .
<br/><br/>Includes bibliographical references. 
<br/><br/> Examines early concepts of time; describes devices for measuring time and their improvement; and discusses how measured time has shaped our concepts of work and leisure. 
<br/><br/><label>ISBN: </label>1560062088 
<br/><br/><label>LCCN: </label>91016713 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clocks and watches.<br/>Time.
<br/><br/><label>Dewey Class. No.: </label>681.1