Cita APA (7th ed.)

Costello, B. (2003). Shifting ground: Reinventing landscape in modern American poetry. Harvard University Press.

Cita Chicago (17th ed.)

Costello, Bonnie. Shifting Ground: Reinventing Landscape in Modern American Poetry. Cambridge: Harvard University Press, 2003.

Cita MLA (9th ed.)

Costello, Bonnie. Shifting Ground: Reinventing Landscape in Modern American Poetry. Harvard University Press, 2003.