question: What is the last name of the author of The Quiet Showman: Sir David Webster and the Royal Opera House?
context: Notes
  References
  Sources
  Banfield, Stephen; Geoffrey Holden Block (2006). Jerome Kern. New Haven, Connecticut: Yale University Press. ISBN 978-0-300-13834-4.
  Banks, Paul (2000). The Making of Peter Grimes: Essays and Studies. Woodbridge: Boydell Press. ISBN 978-0-85115-791-7.
  Begbie, Jeremy; Steven R Guthrie (2011). Resonant Witness: Conversations between Music and Theology. Grand Rapids, Michigan: W B Eerdmans. ISBN 978-0-8028-6277-8.
  Brett, Philip, ed. (1983). Benjamin Britten: Peter Grimes. Cambridge: Cambridge University Press. ISBN 978-0-521-29716-5.
  Bridcut, John (2006). Britten's Children. London: Faber and Faber. ISBN 978-0-571-22839-3.
  Bridcut, John (2012). The Essential Britten. London: Faber and Faber. ISBN 978-0-571-29073-4.
  Britten, Benjamin (1991).  Donald Mitchell (ed.). Letters From a Life: The Selected Letters of Benjamin Britten, Volume I, 1923–1939. London: Faber and Faber. ISBN 978-0-571-15221-6.
  Britten, Benjamin (2004).  Donald Mitchell (ed.). Letters from a Life: The Selected Letters of Benjamin Britten, Volume III, 1946–1951. London: Faber and Faber. ISBN 978-0-571-22282-7.
  Britten, Benjamin (2008).  Reed, Philip; Cooke, Mervyn; Mitchell, Donald (eds.). Letters from a Life: The Selected Letters of Benjamin Britten, Volume IV, 1952–1957. London: The Boydell Press. ISBN 978-1-84383-382-6.
  Carpenter, Humphrey (1992). Benjamin Britten: A Biography. London: Faber and Faber. ISBN 978-0-571-14324-5.
  Craggs, Stewart R (2002). Benjamin Britten: A Bio-bibliography. Westport, Conn: Greenwood Publishing. ISBN 978-0-313-29531-7.
  Culshaw, John (1981). Putting the Record Straight. London: Secker & Warburg. ISBN 978-0-436-11802-9.
  Evans, John (2009). Journeying Boy: The Diaries of the Young Benjamin Britten 1928–1938. London: Faber and Faber. ISBN 978-0-571-23883-5.
  Evans, Peter (1979). The Music of Benjamin Britten. London: J M Dent. ISBN 978-0-460-04350-2.
  Ford, Andrew (2011). Illegal Harmonies: Music in the Modern Age (third ed.). Collingwood, Vic: Black. ISBN 978-1-86395-528-7.
  Gilbert, Susie (2009). Opera for Everybody. London: Faber and Faber. ISBN 978-0-571-22493-7.
  Graham, Colin (1989) [1979]. "Staging first productions".  In David Herbert (ed.). The Operas of Benjamin Britten. London: Herbert Press. ISBN 978-1-871569-08-7.
  Haltrecht, Montague (1975). The Quiet Showman: Sir David Webster and the Royal Opera House. London: Collins. ISBN 978-0-00-211163-8.
  Headington, Christopher (1996). Britten. Illustrated Lives of the Great Composers. London: Omnibus Press. ISBN 978-0-7119-4812-9.
  Headington, Christopher (1993) [1992]. Peter Pears: A Biography. London: Faber and Faber. ISBN 978-0-571-17072-2.
  Kennedy, Michael (1983). Britten. London: J M Dent. ISBN 978-0-460-02201-9.
  Kildea, Paul (2013). Benjamin Britten: A life in the twentieth century. London: Penguin Books. ISBN 978-1-84614-233-8.
answers.text: Haltrecht