00293nam a2200097Ia 4500008004100000082001800041100002200059245007900081264002500160300001000185200527s9999||||xx |||||||||||||| ||und||  a370.152 3 HAR  aHarris, Irving D. 0aEmotional Blocks to Learning: A Study of the Reasons for Failure in School  bThe Free Pressc1961  a210p.