000			00448nam a2200133Ia 4500
008			130521s9999 xx 000 0 und d
020			_a1560523050
100			_a"Hill, Norman C."
245			_aImproving peer relationships :
260			_a"Boston, MA :"
300			_a"v, 55 p. : ill. ; 25 cm."
520			_aIncludes bibliographical references (p. 55).
650			_aASSERTIVENESS (PSYCHOLOGY);AGE GROUPS -- PSYCHOLOGY.;INTERPERSONAL COMMUNICATION
999			_c12487 _d12487