In what format was the release from the Nebt068 catalog on April 11, 2005 in?
CREATE TABLE "release_history" (
  "region" text,
  "date" text,
  "label" text,
  "format" text,
  "catalog" text
);
SELECT "format" FROM "release_history" WHERE "date"='april 11, 2005' AND "catalog"='nebt068';