Source Data Reference for:
City = Portland (OR-USA)
Time = 1950
| City | Year | Size | Size Comment | Year Comment | Author | Title | Location |
|---|---|---|---|---|---|---|---|
| Portland (OR-USA) | 1925 | 280,000 | Tertius Chandler | Four thousand years of urban growth | p506 | ||
| Portland (OR-USA) | 1950 | 373,600 | Johan Huizinga | Internationaal aardrijkskundig woordenboek | |||
| Portland (OR-USA) | 1950 | 489,000 | Tertius Chandler | Four thousand years of urban growth | p508 |