000 00270 a2200109 4500
050 _aR118.4
_bG61
100 _lEnglish
_qGraeff Judith
245 _aCommunication for Health and Behavior Change
260 _aSan Francisco
_bJossey- Bass
_c1993
300 _axxvi
942 _2lcc
999 _c275
_d275