00446nam a22001337a 4500008004100000020001500041050002100056100002600077245009800103260002300201300003800224650002400262700002600286151121b        xxu||||| |||| 00| 0 eng d  a1562860607  aLC 5805.M36 1997  aMantyla, Karen.d1997  aDistance learning: A step-by-step guide for trainers/cKaren  Mantyla and  J. Richard Gidiven  aUSA;bASTD,c1997.  avii,179 p. :ill.bIncludes index.  aDistance education.  aGidiven,  J. Richard.