Instructional units on efficiency of movement in traffic and automobile operation. 
Issued by Department of public instruction, Agnes Samuelson, superintendent.  Prepared by Teacher training class, Iowa State teachers college.  Printed by Iowa motor vehicle department, Lew Wallace, commissioner. 
 - [Des Moines?  1938] 
 - 118 p.  incl. illus., forms.  22 cm. 
<br/><br/> At head of title: State of Iowa, 1938. 
<br/><br/>Includes references. 
<br/><br/><label>LCCN: </label>e  38000337  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Accidents--Prevention.<br/>Automobile drivers.<br/>Traffic accidents.
<br/><br/><label>LC Class. No.: </label>LB1629.I8  / A2 1938