000 00310nam a2200097Ia 4500
008 120223s9999 xx 000 0 und d
082 _a372.37 COR
100 _aCornacchia, Harold J.
245 _aDruges in the classroom : a conceptual model for school programs
260 _bC.V. Mosby
_aSaint Louis
_c1973
999 _c144694
_d144694