^abKendall, Alan.The Chronicle of Classical Music. Thames & Hudson, 2000: p. 234
^Mitchell, Donald (ed) (1991).Letters From A Life: Selected Letters of Benjamin Britten, Vol. 2 1939–45. London: Faber and Faber.ISBN0-571-16058-1. p. 1030
^Norris, Gerald (1981).A musical gazetteer of Great Britain & Ireland. Newton Abbot, Devon North Pomfret, Vt: David & Charles. p. 198.ISBN9780715378458.
^Barker, Donald J. "William Wallace", inGrove Music Online, 2001.