Zahl, Paul A.  1910- <br/><br/>
Blindness; modern approaches to the unseen environment / 
Zahl, Paul A. 
 - Princeton,  Princeton Univ. Press,  1950. [Reprent 1963] 
 - xvi, 576 p. ;  ill. 
<br/><br/>Contents.--History and welfare.--Education and psychology.--Vocational considerations.--The military blinded.--Time-tested boons to the blind.--Exploration of new technological horizons.--Ophthalmological factors. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Blind.
<br/><br/><label>Dewey Class. No.: </label>362.4  / ZAB 
<br/><br/><label>National Library of Medicine Call No.: </label>HV 1593  / Z19b 1950