Cita APA (7th ed.)

Varelli, G. (2013). Two newly discovered tenth-century Organa. Cambridge University Press.

Cita Chicago (17th ed.)

Varelli, G. Two Newly Discovered Tenth-century Organa. Cambridge University Press, 2013.

Cita MLA (9th ed.)

Varelli, G. Two Newly Discovered Tenth-century Organa. Cambridge University Press, 2013.