Robert E. Boston <br/><br/>
How to write and use performance objectives to individualize instruction /  How to classify a performance objective. 
Boston E.R. 
 - New Jersey :  Educational technology ;  1972. 
 - 90 pages. 
<br/><br/><label>ISBN: </label>0877780404 
<br/><br/><label>LC Class. No.: </label>LB 1031  / .B67 1972