Byrne, D. (1970). The passive. Longman Green.
Lua i Stíl Chicago (17ú heag.)Byrne, Donn. The Passive. London: Longman Green, 1970.
Lua MLA (9ú heag.)Byrne, Donn. The Passive. Longman Green, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.