Birtwistle, H. (1979). Silbury Air: For chamber ensemble ; (1977, revised version 2003) / Harrison Birtwistle. Universal Ed..
Citazione stile Chigago Style (17a edizione)Birtwistle, Harrison. Silbury Air: For Chamber Ensemble ; (1977, Revised Version 2003) / Harrison Birtwistle. London: Universal Ed., 1979.
Citatione MLA (8a ed.)Birtwistle, Harrison. Silbury Air: For Chamber Ensemble ; (1977, Revised Version 2003) / Harrison Birtwistle. Universal Ed., 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.