Black, George . <br/><br/>
Long Life and How to Reach it /  Textual Documents 
George Black. 
 - 1st ed. / 
 - London :  Ward Lock & Co. ,  Nd. 
 - 159p. :  ill ;  20cm . 
<br/><br/><label>Subjects--Index Terms: </label>Health G-Technology 
<br/><br/><label>Dewey Class. No.: </label>612.68  / B 564 L