- Susan Friedman. Psyche Reborn: The Emergence of H.D. Bloomington: Indiana University Press, 1987.
- Dianne Chisholm. H.D.'s Freudian Poetics: Psychoanalysis in Translation (Reading Women Writing). Cornell: Cornell University Press, 1992.
- Claire Buck. H.D. and Freud: Bisexuality and a Feminine Discourse. New York: St. Martin's Press, 1991.
- "Helen by H.D.." The Poetry Foundation. 23 May 2018. <https://www.poetryfoundation.org/poems/46541/helen-56d22674d6e41>.
- "H.D. (Hilda Doolittle) 1886-1961." Encyclopedia of American Poetry: The Twentieth Century. 23 May 2018. <https://search.credoreference.com/content/entry/routampoetry/h_d_hilda_doolittle_1886_1961/0>.
- "Doolittle, Hilda." The Columbia Encyclopedia. 23 May 2018. <https://search.credoreference.com/content/entry/columency/doolittle_hilda/0>.
- "Doolittle, Hilda (1886 - 1961) American poet." The Penguin Biographical Dictionary of Women. 23 May 2018. <https://search.credoreference.com/content/entry/penbdw/doolittle_hilda_1886_1961/0>.