APA (7th ed.) Citation
(1993). Encyclopaedia Britannica: Britannica Book of the Year 1993 (1. ed.). Encyclopaedia Britannica.
Chicago Style (17th ed.) Citation
Encyclopaedia Britannica: Britannica Book of the Year 1993. 1. ed. Chicago: Encyclopaedia Britannica, 1993.
MLA (9th ed.) Citation
Encyclopaedia Britannica: Britannica Book of the Year 1993. 1. ed. Encyclopaedia Britannica, 1993.
Warning: These citations may not always be 100% accurate.