Original: Berbiguier, Tranquille. 18 Exercises or Etudes for Flute. 2 flutes. Berbiguier, Tranquille. Altès, Henry Publisher.
Oversettelse: Berbiguier, Quille. 18 øvelser eller Etudes for fløyte. Berbiguier, Quille. Paris. Richault, n. Plate 18995 R. Copyright.