Gaya APA

Duffey, B, I. (1978). Poetry in America: Expression and Its Values in the Times of Bryant, Whitman, and Pound . United State of America: Duke University Press.

Gaya MLA

Duffey, Bernard, I.. "Poetry in America: Expression and Its Values in the Times of Bryant, Whitman, and Pound". United State of America: Duke University Press, 1978. Text.