00501nam a2200133Ia 4500008004100000040001700041082002200058110007700080245006800157260002400225300001000249440003900259650006900298190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta371.1bU58B  aUnited Nations Educational, Scientific and Cultural Organization (Paris) 0aBetter teachersban experiment with in-service teacher training  aParisbUNESCOc1970  a212p.  aInternational education year, 1970  aEducation; Teachers-Job satisfaction; Teachers-Social conditions