000			00268nam a2200109Ia 4500
008			230416s9999||||xx |||||||||||||| ||und||
020			_a80163270
050			_aRC489.B4 B436 1971
245		0	_aBehavioral intervention in human problems.
260			_c1971
942			_2lcc _cBK
999			_c756 _d756