[Duets for flute]

MLA

Breiff, Ernst, et al. [duets for Flute]. Longerich, 1809.

APA

Breiff, E., Westerhoff, C., Paer, F., Mozart, W. Amadeus, Rehm, J. Anton, & Pleyel, I. (1809). [Duets for flute]. Longerich.

Chicago

Breiff, Ernst, Christian Westerhoff, Ferdinando Paer, Wolfgang Amadeus Mozart, Johann Anton Rehm, and Ignaz Pleyel. [duets for Flute]. Longerich, 1809.