CREATE TABLE table_13167 ("Position" FLOAT, "Club" TEXT, "Played" FLOAT, "Points" FLOAT, "Wins" FLOAT, "Draws" FLOAT, "Losses" FLOAT, "Goals for" FLOAT, "Goals against" FLOAT, "Goal Difference" FLOAT)

Which Goal Difference has 13 Wins, and a Position of 3, and Played smaller than 30?
SELECT AVG("Goal Difference") FROM table_13167 WHERE "Wins" = '13' AND "Position" = '3' AND "Played" < '30'
SELECT AVG("Goal Difference") FROM "table_13167" WHERE "Played" < '30' AND "Position" = '3' AND "Wins" = '13'