APA (7th ed.) Citation

Elgar, E. (1899). Variations on an original theme (Enigma) for orchestra: Opus 36 (Studienpartitur.). Novello.

Chicago Style (17th ed.) Citation

Elgar, Edward. Variations on an Original Theme (Enigma) for Orchestra: Opus 36. Studienpartitur. Borough Green [u.a.]: Novello, 1899.

MLA (9th ed.) Citation

Elgar, Edward. Variations on an Original Theme (Enigma) for Orchestra: Opus 36. Studienpartitur. Novello, 1899.