| introduction to united states geography | 0.97 | 0.9 | 556 | 39 | 76 |
| united states history and geography | 0.31 | 0.3 | 3188 | 35 | 36 |
| united states history and geography pdf | 1.96 | 0.1 | 1436 | 39 | 45 |
| in the united states geography | 1.98 | 0.9 | 7037 | 30 | 71 |
| geography of the united states wikipedia | 0.88 | 0.4 | 4651 | 40 | 100 |
| united states of america geography | 0.12 | 0.6 | 6288 | 34 | 94 |
| us history and geography | 1.19 | 0.4 | 7783 | 24 | 7 |
| geography of usa pdf | 0.72 | 0.9 | 660 | 20 | 16 |
| united states history and geography textbook | 0.11 | 0.1 | 5430 | 44 | 86 |
| geography of the u.s | 0.01 | 0.3 | 2322 | 20 | 49 |
| united states history and geography book | 1.57 | 0.2 | 128 | 40 | 49 |
| the geography of usa | 1.92 | 0.1 | 3474 | 20 | 96 |
| geography according to americans | 0.36 | 0.6 | 4179 | 32 | 55 |
