The ovulation method of birth regulation : the latest advances for achieving or postponing pregnancy--naturally /
Wilson, Mercedes Arzú.
The ovulation method of birth regulation : the latest advances for achieving or postponing pregnancy--naturally / Mercedes Arzú Wilson. - New York : Van Nostrand Reinhold, 1980. - xxii, 201 p. : ill. ; 26 cm.
Includes bibliographical references and index.
0442295154
79015167
Natural family planning--Ovulation method.
Rhythm methods.
613.9/434
The ovulation method of birth regulation : the latest advances for achieving or postponing pregnancy--naturally / Mercedes Arzú Wilson. - New York : Van Nostrand Reinhold, 1980. - xxii, 201 p. : ill. ; 26 cm.
Includes bibliographical references and index.
0442295154
79015167
Natural family planning--Ovulation method.
Rhythm methods.
613.9/434