APA (7th ed.) Zitazioa

Williams, W. C. (1967). The collected later poems of William. New Directions.

Chicago Style (17th ed.) Zitazioa

Williams, William Carlos. The Collected Later Poems of William. New York: New Directions, 1967.

MLA (9th ed.) Zitazioa

Williams, William Carlos. The Collected Later Poems of William. New Directions, 1967.