00377nam a2200121Ia 4500008004100000040001700041082002300058100001900081245005800100260004500158300001000203650004200213190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta370.7bR956R  aRusk, Robert R 0aResearch in educationban introductioncRobert R Rusk  aLondonbUniversity of London Pressc1932  a108p.  aEducation-Research; Education-History