What is the Partner with Opponents in the final with roy emerson rod laver, with Date smaller than 1975?
CREATE TABLE "doubles_titles_12" (
  "outcome" text,
  "date" real,
  "tournament" text,
  "partner" text,
  "opponents_in_the_final" text,
  "score_in_the_final" text
);
SELECT "partner" FROM "doubles_titles_12" WHERE "opponents_in_the_final"='roy emerson rod laver' AND "date"<1975;