Gallagher, V. P. <br/><br/>
Contrast requirements of urban drivers / 
by V. P. Gallagher and P. G. Maguire 
 - Washington, D. C. :  United States Government Printing Office,  1974 
 - 72 p. ;  27 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Automobile drivers--Medical examinations--United States<br/>Drivers' licenses--United States
<br/><br/><label>Dewey Class. No.: </label>629.2830973