Hopkins, G. M., Bridges, R. S., & Abbott, C. C. (1955). The letters of Gerard Manley Hopkins to Robert Bridges. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Hopkins, Gerard Manley, Robert Seymour Bridges, agus Claude Collier Abbott. The Letters of Gerard Manley Hopkins to Robert Bridges. London, New York: Oxford University Press, 1955.
Lua MLA (8ú heag.)Hopkins, Gerard Manley, et al. The Letters of Gerard Manley Hopkins to Robert Bridges. Oxford University Press, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.