Cita APA (7th ed.)
Shakespeare, W. (1990). Romeo and Juliet. Penguin.
Cita Chicago (17th ed.)
Shakespeare, William. Romeo and Juliet. New York: Penguin, 1990.
Cita MLA (9th ed.)
Shakespeare, William. Romeo and Juliet. Penguin, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.