admiral byrd antarctic expedition | 1.85 | 0.3 | 2099 | 33 | 52 |
admiral byrd antarctic expedition 1946 | 0.64 | 0.2 | 1429 | 38 | 54 |
admiral byrd antarctic expedition attacked | 0.33 | 0.1 | 5112 | 42 | 91 |
admiral byrd 1947 antarctic expedition | 1.15 | 0.9 | 2646 | 38 | 8 |
admiral richard byrd antarctic expedition | 0.17 | 0.6 | 8022 | 41 | 47 |
admiral byrd arctic expedition | 1.32 | 0.8 | 214 | 30 | 79 |
admiral byrd antarctica story | 0.64 | 0.3 | 4258 | 29 | 100 |
admiral byrd antarctica discovery | 1.22 | 0.2 | 1185 | 33 | 9 |
what did admiral byrd find in antarctica | 1.4 | 0.6 | 3104 | 40 | 9 |
admiral byrd antarctica photos | 0.43 | 0.4 | 6468 | 30 | 39 |
admiral byrd battle in antarctica | 0.65 | 0.3 | 7855 | 33 | 63 |
admiral byrd antarctica map | 0.28 | 0.5 | 2006 | 27 | 53 |
admiral byrd antarctica book | 0.62 | 0.2 | 3631 | 28 | 97 |
admiral richard byrd antarctica | 0.23 | 0.3 | 2685 | 31 | 34 |
admiral byrd interview antarctica | 1.76 | 0.1 | 9442 | 33 | 82 |