Prytherch, R. J., & Harrod, L. M. (1984). Harrod's Librarians' glossary of terms used in librarianship, documentation and the book crafts, and reference book (7th ed.). Gower.
Lua i Stíl Chicago (17ú heag.)Prytherch, Raymond John, agus Leonard Montague Harrod. Harrod's Librarians' Glossary of Terms Used in Librarianship, Documentation and the Book Crafts, and Reference Book. 7th ed. Aldershot, Eng.: Gower, 1984.
Lua MLA (9ú heag.)Prytherch, Raymond John, agus Leonard Montague Harrod. Harrod's Librarians' Glossary of Terms Used in Librarianship, Documentation and the Book Crafts, and Reference Book. 7th ed. Gower, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.