What circuit was the race named international trophy raced at by the winning driver eliseo salazar?
CREATE TABLE "races" (
  "round" real,
  "name" text,
  "circuit" text,
  "date" text,
  "winning_driver" text,
  "winning_car" text
);
SELECT "circuit" FROM "races" WHERE "winning_driver"='eliseo salazar' AND "name"='international trophy';