Ronzitti, G. (2011). Vagueness: A Guide. Springer Netherlands. https://doi.org/10.1007/978-94-007-0375-9
Lua i Stíl Chicago (17ú heag.)Ronzitti, Giuseppina. Vagueness: A Guide. Dordrecht: Springer Netherlands, 2011. https://doi.org/10.1007/978-94-007-0375-9.
Lua MLA (9ú heag.)Ronzitti, Giuseppina. Vagueness: A Guide. Springer Netherlands, 2011. https://doi.org/10.1007/978-94-007-0375-9.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.