000 00282nam a2200121Ia 4500
008 230815s9999 xx 000 0 und d
082 _a150
_bHEF
100 _aHefferon, Kate
245 0 _aPositive psychology theory
260 _aUSA
_b:USA
_c2011
300 _a288p.
942 _cBOOK
999 _c16332
_d16332