Lynen, J. F. (1960). The pastoral art of Robert Frost. New York: Yale University Press.
Dyfyniad Arddull ChicagoLynen, John F. The Pastoral Art of Robert Frost. New York: Yale University Press, 1960.
Dyfyniad MLALynen, John F. The Pastoral Art of Robert Frost. New York: Yale University Press, 1960.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.