| Artist | : | Northrop Grumman X-47B: The Billion Dollar Drone |
| Title | : | Megaprojects |
| Duration | : | 837 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | Northrop Grumman X-47B: The Billion Dollar Drone |
| Title | : | Megaprojects |
| Duration | : | 837 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |