Richards, J. C., & Bohlke, D. (2012). Speak now 4: Communicate with confidence. New York: Oxford University Press.
Stile di citazione ChicagoRichards, Jack C., e David Bohlke. Speak Now 4: Communicate With Confidence. New York: Oxford University Press, 2012.
Citazione MLARichards, Jack C., e David Bohlke. Speak Now 4: Communicate With Confidence. New York: Oxford University Press, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.