Warren, R. P. (1966). Selected poems: New and old, 1923-1966. Random House.
芝加哥风格引文Warren, Robert Penn. Selected Poems: New and Old, 1923-1966. New York: Random House, 1966.
MLA引文Warren, Robert Penn. Selected Poems: New and Old, 1923-1966. Random House, 1966.
警告：这些引文格式不一定是100％准确.