Lautzenheiser, T. a. (1999). Essential elements 2000 - Horn book 1. Hal-Leonard Corp.
Chicago-čujuhus (17. p.)Lautzenheiser, Tim...[et al]. Essential Elements 2000 - Horn Book 1. Milwaukee: Hal-Leonard Corp, 1999.
MLA-čujuhus (9. p.)Lautzenheiser, Tim...[et al]. Essential Elements 2000 - Horn Book 1. Hal-Leonard Corp, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.