Freeman, B. (1940). Studies and improvisations. Robbins Music Corporation.
Chicago-čujuhus (17. p.)Freeman, Bud. Studies and Improvisations. Nueva York: Robbins Music Corporation, 1940.
MLA-čujuhus (9. p.)Freeman, Bud. Studies and Improvisations. Robbins Music Corporation, 1940.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.