00319nam a2200109Ia 4500020001800000082002100018245005700039260003300096300001600129650004300145700002100188  a0-08-033409-1  aRR 371.3303 INT; 0aInternational encyclopedia of educational technology  aOxfordbPergamon Pressc1989  axxii, 654p.  aEducational technology - Encyclopedias  aEraut,  Michael