Ultan, L. (1977). Workbook/anthology for music theory: Problems and practices in the Middle Ages and Renaissance. University of Minnesota Press.
Chicago-čujuhus (17. p.)Ultan, Lloyd. Workbook/anthology for Music Theory: Problems and Practices in the Middle Ages and Renaissance. Minneapolis: University of Minnesota Press, 1977.
MLA-čujuhus (9. p.)Ultan, Lloyd. Workbook/anthology for Music Theory: Problems and Practices in the Middle Ages and Renaissance. University of Minnesota Press, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.