Frost, R., & Untermeyer, L. (1971). Robert Frost's poems: With an introduction and commentary. Pocket Books.
芝加哥风格引文Frost, Robert, 与 Louis Untermeyer. Robert Frost's Poems: With an Introduction and Commentary. New York: Pocket Books, 1971.
MLA引文Frost, Robert, 与 Louis Untermeyer. Robert Frost's Poems: With an Introduction and Commentary. Pocket Books, 1971.
警告：这些引文格式不一定是100％准确.