Black, George . <br/><br/>
Brain Work and Overwork /  Textual Documents 
George Black. 
 - 1st ed. / 
 - London :  Ward, Lock And Co ,  1893. 
 - 124p. ;  18 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Medical Sciense G-Technology 
<br/><br/><label>Dewey Class. No.: </label>611.715  / B 564 B