CREATE TABLE table_68306 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

Where's the location for the opponent James Zikic and 3 rounds?
SELECT "Location" FROM table_68306 WHERE "Round" = '3' AND "Opponent" = 'james zikic'
SELECT "Location" FROM "table_68306" WHERE "Opponent" = 'james zikic' AND "Round" = '3'