00614nam a22001337a 450000500170000002000240001708200160004110000210005724500710007826000460014930000340019550000350022965002160026420260901154539.0  a9781591402374 (pbk)  a371.33bDAR  aDarbyshire, Paul  aInstructional technologiesb: cognitive aspects of online programs  aUnited States of AmericabIRM Pressc2005  axii, 274 p.b: ill.c; 25 cm.  aIncludes references and index.  aEducationaDistance educationvLearning management systemsvInstructional systems designvEducational technologyvInstructional system vInstructional technology vOnline programsvOnline teachingvGeneral books