000			00395nam a2200145Ia 4500
005			20240821151604.0
008			240821s9999||||xx |||||||||||||| ||und||
082			_a301.427 SYM
100			_aSymonds, Percival M.
245		0	_aDynamics of parent-child relationships
260			_aNew York _bColumbia Univ. _c1949
300			_a197p
650			_aECOLOGY, DEMOGRAPHY AND COMMUNNITY
942			_cBK
999			_c33712 _d33712