![](/img/cover-not-exists.png)
On the apparent subfecundity of non‐family planners
Ridley, Jeanne Clare, Sheps, Mindel C., Lingner, Joan W., Menken, Jane A.Volume:
16
Language:
english
Journal:
Social Biology
DOI:
10.1080/19485565.1969.9987796
Date:
March, 1969
File:
PDF, 362 KB
english, 1969