Gopalan, N P <br/><br/>
Construction and standardization of a vocational... / 
by N P Gopalan 
 -  Ph.D Thesis,  1972. 
 - 35p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370  / GOP.C