Patterns of birthweights /
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Cit |
| Iaith: | Spanish English |
| Cyhoeddwyd: |
Washington, D.C.:
Pan American Health Organization,
1987.
|
| Rhifyn: | Primera edición. |
| Cyfres: | Scientific Publication,
No. 504 |
| Pynciau: |