Jorgensen, A. (1982). Romance, op. 21: For trombone and piano. Edition Wilhelm Hansen.
Chicago Style aipamenaJorgensen, Axel. Romance, Op. 21: For Trombone and Piano. Copenhagen: Edition Wilhelm Hansen, 1982.
MLA aipamenaJorgensen, Axel. Romance, Op. 21: For Trombone and Piano. Edition Wilhelm Hansen, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.