Gray, R. J. (1990). American poetry of the twentieth century / Richard Gray. Longman.
Chicago Style (17th ed.) CitationGray, Richard J. American Poetry of the Twentieth Century / Richard Gray. London: Longman, 1990.
MLA (9th ed.) CitationGray, Richard J. American Poetry of the Twentieth Century / Richard Gray. Longman, 1990.
Warning: These citations may not always be 100% accurate.