APA (7th ed.) Citation

University of Chicago. Encyclopaedia Británnica. Index to volumes 1 to 23, atlas, index to atlas, list of contributores.

Chicago Style (17th ed.) Citation

University of Chicago. Encyclopaedia Británnica. Index to Volumes 1 to 23, Atlas, Index to Atlas, List of Contributores.

MLA (8th ed.) Citation

University of Chicago. Encyclopaedia Británnica. Index to Volumes 1 to 23, Atlas, Index to Atlas, List of Contributores.

Warning: These citations may not always be 100% accurate.