When :  A Mamily Book of Knowledge : [Over 200 questions and 150 illustrations] / 
Edited by A. Addison. 
 - London :   Octopus Books,  1974. 
 - 128 p. :  ill.,   29 cm. 
 - Family Book of Knowledge .
 - Family Book of Knowledge .
<br/><br/><label>ISBN: </label>0 7064 0377 0  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference publications
<br/><br/><label>Subjects--Index Terms: </label>Questions and answers