Source Data Reference for:
City = Zhangjiakou
Time = 1900
| City | Year | Size | Size Comment | Year Comment | Author | Title | Location |
|---|---|---|---|---|---|---|---|
| Kalgan | 1900 | 60,000 | Tertius Chandler | Four thousand years of urban growth | p497 | ||
| Zhangjiakou | 1911 | 200,000 | n/a | Gothaischer Hofkalender |