Frost, R., & Untermeyer, L. (1971). Robert Frost's poems: With an introduction and commentary. Pocket Books.
Lua i Stíl Chicago (17ú heag.)Frost, Robert, agus Louis Untermeyer. Robert Frost's Poems: With an Introduction and Commentary. New York: Pocket Books, 1971.
Lua MLA (8ú heag.)Frost, Robert, agus Louis Untermeyer. Robert Frost's Poems: With an Introduction and Commentary. Pocket Books, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.