Human ovulation and fertility:

Eitemau Tebyg

• Control of ovulation /
  gan: Crighton, D. B.
  Cyhoeddwyd: (1978)
• The sociology of human fertility : an annotated bibliography /
  gan: Freedman, Ronald
  Cyhoeddwyd: (1975)
• Human Fertility In India
  gan: Mandelbaum, David G
  Cyhoeddwyd: (1974)
• Sociology of human fertility : an annotated bibliography /
  gan: Freedman, Ronald
  Cyhoeddwyd: (1975)
• Culture And Human Fertility In India
  gan: Srinivas, M N
  Cyhoeddwyd: (1977)