PolotskBelarus |
LanzhouChina |
84 968
(2014) |
84 968
(2014)
3 310 000
(2007) |
3 310 000
(2007) |
41 km2
|
41 km2
13 100 km2
|
13 100 km2
|
2 072.39
/km2 |
2 072.39/km2
252.67/km2
|
252.67
/km2 |