| Undercover operations -- Fiction. Matches 201 items |
| Undercover operations -- Galapagos Islands -- Fiction. Matches 1 item |
| Undercover operations -- Juvenile fiction. Matches 16 items |
| Undercover operations -- New Jersey -- Case studies. Matches 1 item |
| Undercover operations -- New York (State) -- New York. Matches 1 item |
| Undercover operations -- Tennessee -- Memphis. Matches 1 item |
| Undercover operations -- Texas -- Fiction. Matches 2 items |
| Undercover operations -- United States. Matches 6 items |
| Undercover operations -- United States -- Case studies. Matches 1 item |
| Undercover operations -- United States -- Drama. Matches 1 item |