Sample surveys of current interest.
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
1957
|
| Cyfres: | United Nations. Statistical papers, series C, no.8
|
| Pynciau: |
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
1957
|
| Cyfres: | United Nations. Statistical papers, series C, no.8
|
| Pynciau: |