APA Edition Citation

(1981). The New Encyclopaedia Britannica: Macropaedia-Vol.18 (15th ed.). Encyclopaedia Britannica.

Chicago Edition Citation

The New Encyclopaedia Britannica: Macropaedia-Vol.18. 15th ed. Chicago: Encyclopaedia Britannica, 1981.

MLA Edition Citation

The New Encyclopaedia Britannica: Macropaedia-Vol.18. 15th ed. Encyclopaedia Britannica, 1981.

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