CREATE TABLE table_6744 ("Buechel & Manhart spelling  ( pronunciation ) " TEXT, "Ullrich" TEXT, "Brandon University" TEXT, "Deloria & Boas" TEXT, "Dakota Mission" TEXT, "Rood & Taylor" TEXT, "Riggs" TEXT, "Williamson" TEXT, "University of Minnesota" TEXT, "White Hat" TEXT)

Deloria & Boas of , and a Dakota Mission of un had what Buechel & Manhart spelling (pronunciation)?
SELECT "Buechel & Manhart spelling (pronunciation)" FROM table_6744 WHERE "Deloria & Boas" = 'ų' AND "Dakota Mission" = 'un'
SELECT "Buechel & Manhart spelling (pronunciation)" FROM "table_6744" WHERE "Dakota Mission" = 'un' AND "Deloria & Boas" = 'ų'