Spain, P. L <br/><br/>
A Report on the System of Radioprimaria in the State of San Luis Potosi, Mexico 

 - Washington:  Information center on Instructional Technology Academy for Educational Development,   1973. 
 - 127p.;  23cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Methods of instruction and study
<br/><br/><label>Dewey Class. No.: </label>371.3  / SPA