000			00761cam a2200229 i 4500
999			_c1226 _d1226
001			2753896
005			20240809154207.0
008			790516s1980 nyua b 001 0 eng b
010			_a 79015167
020			_a0442295154
040			_cggsmclib
082	0	0	_a613.9/434
100	1		_aWilson, Mercedes Arzú.
245	1	4	_aThe ovulation method of birth regulation : _bthe latest advances for achieving or postponing pregnancy--naturally / _cMercedes Arzú Wilson.
260			_aNew York : _bVan Nostrand Reinhold, _c1980.
264			_c1980
300			_axxii, 201 p. : _bill. ; _c26 cm.
504			_aIncludes bibliographical references and index.
650		0	_aNatural family planning _xOvulation method.
650		2	_aRhythm methods.
942			_2ddc _cBK