CREATE TABLE table_47548 ("Volume:Issue" TEXT, "Issue Date ( s ) " TEXT, "Weeks on Top" TEXT, "Song" TEXT, "Artist" TEXT)

What song came from volume:issue 68:20-24?
SELECT "Song" FROM table_47548 WHERE "Volume:Issue" = '68:20-24'
SELECT "Song" FROM "table_47548" WHERE "Volume:Issue" = '68:20-24'