Costello, B. (2003). Shifting ground: Reinventing landscape in modern American poetry. Harvard University Press.
Dyfyniad Arddull ChicagoCostello, Bonnie. Shifting Ground: Reinventing Landscape in Modern American Poetry. Cambridge: Harvard University Press, 2003.
Dyfyniad MLACostello, Bonnie. Shifting Ground: Reinventing Landscape in Modern American Poetry. Harvard University Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.