Jones, L., & Leo Jones. (2008). Let's talk 3. New York: Cambridge University Press.
Dyfyniad Arddull ChicagoJones, Leo, và Leo Jones. Let's Talk 3. New York: Cambridge University Press, 2008.
Dyfyniad MLAJones, Leo, và Leo Jones. Let's Talk 3. New York: Cambridge University Press, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.