Cita APA (7a ed.)

Watts, C. T. (1991). Romeo and Juliet. Harvester Wheatsheaf.

Cita Chicago Style (17a ed.)

Watts, Cedric Thomas. Romeo and Juliet. New York [etc.]: Harvester Wheatsheaf, 1991.

Cita MLA (9a ed.)

Watts, Cedric Thomas. Romeo and Juliet. Harvester Wheatsheaf, 1991.