Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Round | Name | Circuit | Date | Winning driver | Winning car |
| --- | --- | --- | --- | --- | --- |
| 1.0 | International Gold Cup | Oulton Park | April 4 | Guy Edwards | Arrows A1 |
| 2.0 | Evening News Trophy | Brands Hatch | April 7 | Desiré Wilson | Wolf WR4 |
| 3.0 | International Trophy | Silverstone | April 20 | Eliseo Salazar | Williams FW07 |
| 4.0 | Sun Trophy | Mallory Park | May 5 | Emilio de Villota | Williams FW07 |
| 5.0 | Rivet Supply Trophy | Thruxton | May 26 | Eliseo Salazar | Williams FW07 |
| 6.0 | Monza Lottery Grand Prix | Monza | June 29 | Emilio de Villota | Williams FW07 |
| 7.0 | ATV Trophy | Mallory Park | July 27 | Emilio de Villota | Williams FW07 |
| 8.0 | Anglia TV Trophy | Snetterton | August 10 | Guy Edwards | Arrows A1 |
| 9.0 | Pace Petroleum Trophy | Brands Hatch | August 25 | Emilio de Villota | Williams FW07 |
| 10.0 | Radio Victory Trophy | Thruxton | September 7 | Eliseo Salazar | Williams FW07 |
| 11.0 | Daily Express Formula 1 Trophy | Oulton Park | September 20 | Jim Crawford | Chevron B45 |
| 12.0 | Pentax Trophy | Silverstone | October 5 | Emilio de Villota | Williams FW07 |
Question:
What circuit was the race named international trophy raced at by the winning driver eliseo salazar?
Answer:
Silverstone