Music, including important autographs by Beethoven and Wagner : London, Friday, 5 December 2003.

MLA

Sotheby's (Firm). Music, including important autographs by Beethoven and Wagner : London, Friday, 5 December 2003. London : Sotheby's, 2003.

APA

Sotheby's (Firm). (2003). Music, including important autographs by Beethoven and Wagner : London, Friday, 5 December 2003. London : Sotheby's.

Chicago

Sotheby's (Firm). Music, including important autographs by Beethoven and Wagner : London, Friday, 5 December 2003. London : Sotheby's, 2003.