What is the record of the Hartford Whalers home team with the April 13 game date?
CREATE TABLE "boston_bruins_4_hartford_whalers_2" (
  "date" text,
  "visitor" text,
  "score" text,
  "home" text,
  "record" text
);
SELECT "record" FROM "boston_bruins_4_hartford_whalers_2" WHERE "home"='hartford whalers' AND "date"='april 13';