@misc{Mozart_Wolfgang_Amadeus_(1756-1791)._Sonata,
 author={Mozart, Wolfgang Amadeus (1756-1791).},
 howpublished={online},
 publisher={Kuncewicz & Hofman},
 language={fre},
 type={druk muzyczny},
 title={Sonata XII},
 keywords={Sonata fortepianowa, 18 w.},
}