Gay, L.R. <br/><br/>
Educational evaluation & measurement :  competencies for analysis and application / 
by L.R. Gay. 
 - Columbus :  Charles E.Merrill,  c1980. 
 - xiii, 543 p. :  ill. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0675081432 
<br/><br/><label>LC Class. No.: </label>LB 3051  / .G3