Academy of American Poets & Warren, R. P. (1984). Fifty years of American poetry: Anniversary volume for the Academy of American Poets. Laurel.
Citação do estilo Chicago (17ª ed.)Academy of American Poets e Robert Penn Warren. Fifty Years of American Poetry: Anniversary Volume for the Academy of American Poets. New York: Laurel, 1984.
Citação MLA (9ª ed.)Academy of American Poets e Robert Penn Warren. Fifty Years of American Poetry: Anniversary Volume for the Academy of American Poets. Laurel, 1984.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.