00419nam a2200145Ia 4500008004100000020001500041041000800056082001800064100002100082245007900103250000600182260005100188300001100239650002300250210716s1985    xx            000 0 und d  a0030636884  aeng  a370.1523 GAGR  aGagne, Robert M.  aConditions of learning: and theory of instruction.bTheory of instruction.  a1  aNew YorkbHolt, Rinehart and winston Incc1985  axv,361  aGeneral Management