Encyclopaedia of how it works   : from abacus to zoom lens 
Edited by Donald Clarke 
 - London:  Marshall Cavendish,  1977. 
 - 248p. 
<br/><br/> HB 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>0856853046 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science-Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>603  / ENC