(1989). Britannica atlas ([Ed. 1989].). Encyclopaedia Britannica.
Chicago Style (17th ed.) CitationBritannica Atlas. [Ed. 1989]. Chicago [etc.]: Encyclopaedia Britannica, 1989.
MLA (9th ed.) CitationBritannica Atlas. [Ed. 1989]. Encyclopaedia Britannica, 1989.
Warning: These citations may not always be 100% accurate.