APA (7th ed.) Citation

Prot, F. J. (2010). Six duos, op. 9 for 2 violas ([Partitur], Urtext.). Gems Music Publ.

Chicago Style (17th ed.) Citation

Prot, Félix J. Six Duos, Op. 9 for 2 Violas. [Partitur], Urtext. Gainesville, FL, USA: Gems Music Publ, 2010.

MLA (9th ed.) Citation

Prot, Félix J. Six Duos, Op. 9 for 2 Violas. [Partitur], Urtext. Gems Music Publ, 2010.