On the Latin language
MLA
Kent, Roland G, and Marcus Terentius Varro. On the Latin Language. Cambridge, MA: Harvard University Press, 2006.
APA
Kent, R. G, & Varro, M. Terentius. (2006). On the Latin language. Cambridge, MA: Harvard University Press.
Chicago
Varro, Marcus Terentius On the Latin Language. Translated by Roland G Kent. Cambridge, MA: Harvard University Press, 2006.