Firth, Lesley <br/><br/>
What things are : a question-and-answer book about ourselves and our world 

 - London ;  Kingfisher ,  1990 . 
 - 127 pages :  illustration ;  28 cm . 
<br/><br/><label>ISBN: </label>9780862724009 
<br/><br/><label>Dewey Class. No.: </label>R 000  / FIR