Hardwick, M. (1972). Osprey guide to Gilbert and Sullivan. Osprey.
Chicago Edition CitationHardwick, Michael. Osprey Guide to Gilbert and Sullivan. London: Osprey, 1972.
Cita MLAHardwick, Michael. Osprey Guide to Gilbert and Sullivan. Osprey, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.