Cita APA

Brooke, H., & Helen Brooke. (2000). Mystery in London. Oxford: Oxford University Press.

Chicago Style Citation

Brooke, Helen, i Helen Brooke. Mystery in London. Oxford: Oxford University Press, 2000.

Cita MLA

Brooke, Helen, i Helen Brooke. Mystery in London. Oxford: Oxford University Press, 2000.

Atenció: Aquestes cites poden no estar 100% correctes.