What is every missile type with a code and location of M-20 Harbor Drive?
CREATE TABLE "wisconsin" (
  "code_location" text,
  "missile_type" text,
  "defense_area" text,
  "dates" text,
  "control_site_condition_owner" text,
  "launch_site_condition_owner" text
);
SELECT "missile_type" FROM "wisconsin" WHERE "code_location"='M-20 Harbor Drive';