Dyfyniad APA
Longenbach, J. (2007). Draft of a letter. University of Chicago Press.
Dyfyniad Arddull Chicago
Longenbach, James. Draft of a Letter. Chicago: University of Chicago Press, 2007.
Dyfyniad MLA
Longenbach, James. Draft of a Letter. University of Chicago Press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.