What model is the A310 of 1983?
CREATE TABLE "airbus_jetliners_1972_1994" (
  "model" text,
  "a300" text,
  "a310" text,
  "a320" text,
  "a330" text,
  "a340" text
);
SELECT "model" FROM "airbus_jetliners_1972_1994" WHERE "a310"='1983';