Mayo,J.A. <br/><br/>
Teacher observation in EL salvador 

 -  Information Center on Instructional Technology,  1994 
 - 23p.;  18cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>371.3  / MAY