Summerfield, G. (1974). Worlds: Seven modern poets. Penguin Books Ltd..
Chicago Style (17th ed.) CitationSummerfield, Geoffrey. Worlds: Seven Modern Poets. New York: Penguin Books Ltd., 1974.
MLA (9th ed.) CitationSummerfield, Geoffrey. Worlds: Seven Modern Poets. Penguin Books Ltd., 1974.
Warning: These citations may not always be 100% accurate.