@misc{Mascagni_Pietro_(1863-1945)_L'amico,
 author={Mascagni, Pietro (1863-1945)},
 howpublished={online},
 publisher={Gebethner e Wolff},
 language={pol},
 language={ita},
 type={druk muzyczny},
 title={L'amico Fritz : opera : Romanza "Sonj pochi fiori" = "Romans o fijołkach" : [na sopran i fortepian]},
}