Schmid, W. (1977). Hal leonard guitar method. Hal Leonard.
Chicago-čujuhus (17. p.)Schmid, Will. Hal Leonard Guitar Method. Milwaukee: Hal Leonard, 1977.
MLA-čujuhus (9. p.)Schmid, Will. Hal Leonard Guitar Method. Hal Leonard, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.