Census of handicapped children.  Department of public instruction ... Agnes Samuelson, superintendent of public instruction. R.C. Williams, director of research. 

 - Des Moines,  The State of Iowa  [1930] 
 - 15 p. incl. tables, forms.  23 cm. 
 - Research  bulletin,  no. 4 .
<br/><br/> At head of title: State of Iowa, 1930. 
<br/><br/><label>LCCN: </label>e  31000394  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children with disabilities.
<br/><br/><label>LC Class. No.: </label>LC4032.I8  / A5 1930