Hutchinson, J. <br/><br/>
Key to the families of flowering plants of the world :  revised and enlarged for use as a supplement to the genera of flowering plants / 
J. Huthinson 
 - Oxford:  Clarendon Press,  1967 
 - vii , 117 p. ;  22 cm. 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>3874291618