Mandl,H <br/><br/>
Learning and instruction/ed by Heinz Mandl..et al 
H Mandl 
 - Oxford  pargamon press  1990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Learning,Psychology Of Congress
<br/><br/><label>LC Class. No.: </label>LB 1051.L431