Bartlett, N. (1985). The Gilbert & Sullivan quiz and puzzle book. Abson.
Cita Chicago (17th ed.)Bartlett, Nigel. The Gilbert & Sullivan Quiz and Puzzle Book. Bristol: Abson, 1985.
Cita MLA (8th ed.)Bartlett, Nigel. The Gilbert & Sullivan Quiz and Puzzle Book. Abson, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.