Hartman, G. H. (1966). Hopkins: A collection of critical essays. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Hartman, Geoffrey H. Hopkins: A Collection of Critical Essays. Englewood Cliffs, N.J.: Prentice-Hall, 1966.
Lua MLA (8ú heag.)Hartman, Geoffrey H. Hopkins: A Collection of Critical Essays. Prentice-Hall, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.