The Billings method
Subtitle: controlling fertility without drugs or devices
By: Dr Evelyn Billings & Ann Westmore.
Contributors: Westmore, Ann.
Edition: New ed. rev. and updated.
Publisher: Gracewing
Published: 1993
Place of publication: Leominster
Language: eng
Number of pages: 264
Notes: First published 1980.

Index p255-262.