APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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