Zimmermann, F. (1971). Trios and quartets for double basses. Univ. of Miami Music Publ..
Čikaški stil citiranja (17. izdanje)Zimmermann, Frederick. Trios and Quartets for Double Basses. Ft. Lauderdale, Fl. [u.a.]: Univ. of Miami Music Publ., 1971.
MLA način citiranja (8. izdanje)Zimmermann, Frederick. Trios and Quartets for Double Basses. Univ. of Miami Music Publ., 1971.
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