APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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