Source Data Reference for:
City = Porto
Time = 1950
| City | Year | Size | Size Comment | Year Comment | Author | Title | Location |
|---|---|---|---|---|---|---|---|
| Oporto | 1925 | 256,000 | Tertius Chandler | Four thousand years of urban growth | p506 | ||
| Porto | 1950 | 284,900 | Johan Huizinga | Internationaal aardrijkskundig woordenboek | |||
| Oporto | 1950 | 355,000 | Tertius Chandler | Four thousand years of urban growth | p508 |