Caruso, E., & Tetrazzini, L. (1975). Caruso and Tetrazzini on the art of singing: By Enrico Caruso and Luisa Tetrazzini (Nachdruck der Ausgabe 1909.). Dover Publ..
Čikaški stil citiranja (17. izdanje)Caruso, Enrico, i Luisa Tetrazzini. Caruso and Tetrazzini on the Art of Singing: By Enrico Caruso and Luisa Tetrazzini. Nachdruck der Ausgabe 1909. New York: Dover Publ., 1975.
MLA način citiranja (8. izdanje)Caruso, Enrico, i Luisa Tetrazzini. Caruso and Tetrazzini on the Art of Singing: By Enrico Caruso and Luisa Tetrazzini. Nachdruck der Ausgabe 1909. Dover Publ., 1975.
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