Oriģināls: Melodious Etudes for Trombone, Book 2. Nos. 61 - 90. Giovanni Marco Bordogni. Voice sheet music. Trombone sheet music. Nos. 61 - 90.
Tulkojums: Melodisks Etudes uz trombona, Book 2. Melodisks Etudes uz trombona, Book 2. Uz trombona. Nos 61-90. John Mark Bordogni.