U.S. National Science Foundation
| Content | Title | Season | Place | Field | Identifier |
|---|---|---|---|---|---|
|
Helicopter on Valley Floor Four People Nearby | 1975-76 | Wright Valley | General | MCMEH-P000083 |
|
Helicopter on Valley Floor Four People Nearby | 1975-76 | Wright Valley | General | MCMEH-P000083 |