Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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