Billings Method

by Evelyn Dr Billings

Les noms des fleurs

by Gaston Bonnier

The Billings method of natural family planning

by Evelyn Billings, Ann Westmore

Family planning the natural way: temperature and symptoms me...

by Richards, Frank Father.

Le point sur la méthode Billings, méthode naturelle pour l...

by Congrès international de la famille d'Afrique et d'Europe (1st 1981 Rome, Italy)

Natural family planning

by Clara R. Ross

Imaging of the infertile couple

by Carol B. Benson, Steven R. Goldstein

An overview of the ever-changing vista of fertility can conveniently be seen from three vantage points: (a) from that of...

Artificial Insemination in Dogs

by Post Grad Committee Vet Sci

Ovarian stimulation

by Mohamed Aboulghar

Natural family planning

by John F. Kippley

Signs of fertility

by Margaret Nofziger

No-pill, no-risk birth control

by Nona Aguilar

Correlations between the mucus symtoms and the hormonal mark...

by J. B. Brown

The Billings enigma

by Tess Livingstone

Pour une libération sexuelle véritable

by Thérèse Jacob-Hargot

Avoid or achieve pregnancy naturally

Cómo reconocer la fertilidad

by Ana Otte

Planning for a family

by Marshall, John

Creation of life, your choice

by Terrie Guay

The fertility question

by Margaret Nofziger