- Archibald MacLeish. "The Snowflake Which Is Now And Hence Forever." PoemHunter.com. 3 Apr 2018. <https://www.poemhunter.com/poem/the-snowflake-which-is-now-and-hence-forever/>.
- "Archibald MacLeish." Poetry Foundation. 2018. 20 Mar 2018. <https://www.poetryfoundation.org/poets/archibald-macleish>.
- "Poet Archibald MacLeish." Academy of American Poets. 20 Mar 2018. <https://www.poets.org/poetsorg/poet/archibald-macleish>.
- David Barber. "Archibald MacLeish's Life and Career." University of Illinois English Department. 20 Mar 2018. <http://www.english.illinois.edu/maps/poets/m_r/macleish/life.htm>.
- "Archibald MacLeish - Previous Librarians of Congress." Library of Congress. 20 Mar 2018. <https://www.loc.gov/about/about-the-librarian/previous-librarians-of-congress/archibald-macleish/>.
- Interviewed by Benjamin DeMott. "Archibald MacLeish, The Art of Poetry No. 18." The Paris Review. 1974. 20 Mar 2018. <https://www.theparisreview.org/interviews/3944/archibald-macleish-the-art-of-poetry-no-18-archibald-macleish>.