The Ovulation Method : The avoidance of pregnancy in medical practice, by a technique which is safe, reliable and morally acceptable /
Billings, John J.
The Ovulation Method : The avoidance of pregnancy in medical practice, by a technique which is safe, reliable and morally acceptable / John J. Billings. - Melbourne : The Advocate Press, 1967. - 95 p.
241.64 / BIL
The Ovulation Method : The avoidance of pregnancy in medical practice, by a technique which is safe, reliable and morally acceptable / John J. Billings. - Melbourne : The Advocate Press, 1967. - 95 p.
241.64 / BIL