000			00448nam a2200145 a 4500
020			_a0125896409
050	0	0	_aHB901
245	0	0	_aChanging patterns of conception and fertility : _bproceedings of the 16th Annual Symposium of the Eugenics Society, London, 1979 /
260			_aLondon ; _aNew York : _bAcademic Press, _c1981.
300			_axii, 211 p. ; 24 cm.
500			_aGB***
650		0	_aFertility, Human
650		0	_aContraception
942			_cBK
999			_c696 _d696