Willi, A. (2003). The languages of Aristophanes: Aspects of linguistic variation in classical Attic Greek. Oxford University Press.

Willi, Andreas. The Languages of Aristophanes: Aspects of Linguistic Variation in Classical Attic Greek. Oxford ; New York: Oxford University Press, 2003.

Willi, Andreas. The Languages of Aristophanes: Aspects of Linguistic Variation in Classical Attic Greek. Oxford University Press, 2003.