Dyfyniad APA

Gibson, W. M. (1967). William D. Howells. University of Minnesota Press.

Dyfyniad Arddull Chicago

Gibson, William Merriam. William D. Howells. Minneapolis: University of Minnesota Press, 1967.

Dyfyniad MLA

Gibson, William Merriam. William D. Howells. University of Minnesota Press, 1967.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.