CREATE TABLE table_19030 ("Year" FLOAT, "Mens singles" TEXT, "Womens singles" TEXT, "Mens doubles" TEXT, "Womens doubles" TEXT, "Mixed doubles" TEXT)

who is the the mens doubles with year being 1978
SELECT "Mens doubles" FROM table_19030 WHERE "Year" = '1978'
SELECT "Mens doubles" FROM "table_19030" WHERE "Year" = '1978'