Lua APA (7ú heag.)

Briggs, A. (1989). The Longman encyclopedia: Editor-in-chief: Asa Briggs. Longman.

Lua i Stíl Chicago (17ú heag.)

Briggs, Asa. The Longman Encyclopedia: Editor-in-chief: Asa Briggs. Burnt Mill, Harlow, Eng.: Longman, 1989.

Lua MLA (9ú heag.)

Briggs, Asa. The Longman Encyclopedia: Editor-in-chief: Asa Briggs. Longman, 1989.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.