Roy Worvill. <br/><br/>
Time, calendars and clocks/ 
Roy Worvill. 
 - Loughbouough:  Lady birds Books,  1973. 
 - 50 pages. 
 - The ladybird keyword reading scheme. .
<br/><br/>What is the time? The water clock The sand clock... 
<br/><br/><br/>English 
<br/><br/> Hbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chlidren stories<br/>Fiction
<br/><br/><label>Dewey Class. No.: </label>529 WOR-T 3880