CREATE TABLE table_30408 ("Season" CLOB, "Mens Singles" CLOB, "Womens Singles" CLOB, "Mens Doubles" CLOB, "Womens Doubles" CLOB, "Mixed Doubles" CLOB)

Name the winners of the mens doubles in the season of 1963/64.
SELECT "Mens Doubles" FROM table_30408 WHERE "Season" = '1963/64'
SELECT "Mens Doubles" FROM "table_30408" WHERE "Season" = '1963/64'