APA (7th ed.) Citation

Busch, H., & Verdi, G. (1988). Verdi's Otello and Simon Boccanegra (revised version) in letters and documents. Clarendon Press.

Chicago Style (17th ed.) Citation

Busch, Hans, and Giuseppe Verdi. Verdi's Otello and Simon Boccanegra (revised Version) in Letters and Documents. Oxford: Clarendon Press, 1988.

MLA (9th ed.) Citation

Busch, Hans, and Giuseppe Verdi. Verdi's Otello and Simon Boccanegra (revised Version) in Letters and Documents. Clarendon Press, 1988.