Kingfisher science encyclopedia (Vol-7) / 
Catherine headlam 
 - London :  Kingfisher ;  1991. 
 - V-7 :  ills ;  25 cm . 
 -  Vol-7 .
<br/><br/>Reference 
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<br/><br/><label>ISBN: </label>1856974537 ( V-7) 
<br/><br/><label>Dewey Class. No.: </label>503