APA Edition Citation

(1977). The new encyclopedia britannica: Macropaedia (Ed.15.).

Chicago Edition Citation

The New Encyclopedia Britannica: Macropaedia. Ed.15. London, Helen Hemingway Benton, 1977.

MLA Edition Citation

The New Encyclopedia Britannica: Macropaedia. Ed.15. 1977.

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