CREATE TABLE table_33061 ("Year" TEXT, "League" TEXT, "Reg. Season" TEXT, "Playoffs" TEXT, "Attendance Average" TEXT)

Which League showed 7,975 for an average attendance?
SELECT "League" FROM table_33061 WHERE "Attendance Average" = '7,975'
SELECT "League" FROM "table_33061" WHERE "Attendance Average" = '7,975'