John Billings

Born: 1918

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Born: 1918

Books by John Billings (50 max)

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The ovulation method the avoidance of pregnancy in medical practice by a technique which is safe, reliable and morally acceptable

1970

John Billings, Bill Baird

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The promotion of birth control by the United States Agency for International Development

1981

John Billings, Bill Baird, Ovulation Method Research and Reference Centre of Australia