Pontano, G. G., & Pigman, G. W. (2019). The virtues and vices of speech. Harvard University Press.
Chicago Style (17th ed.) ZitazioaPontano, Giovanni Gioviano, eta G. W. Pigman. The Virtues and Vices of Speech. Cambridge, Massachusetts, USA: Harvard University Press, 2019.
MLA (9th ed.) ZitazioaPontano, Giovanni Gioviano, eta G. W. Pigman. The Virtues and Vices of Speech. Harvard University Press, 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.