Harris, D. A. (1982). Inspirations unbidden, the "terrible sonnets" of Gerard Manley Hopkins. University of California Press.
Lua i Stíl Chicago (17ú heag.)Harris, Daniel A. Inspirations Unbidden, the "Terrible Sonnets" of Gerard Manley Hopkins. Berkeley: University of California Press, 1982.
Lua MLA (8ú heag.)Harris, Daniel A. Inspirations Unbidden, the "Terrible Sonnets" of Gerard Manley Hopkins. University of California Press, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.