-. Encyclopedia Britannica - vol - 1.
Chicago Style (17th ed.) Citation-. Encyclopedia Britannica - Vol - 1.
MLA (9th ed.) Citation-. Encyclopedia Britannica - Vol - 1.
Warning: These citations may not always be 100% accurate.
-. Encyclopedia Britannica - vol - 1.
Chicago Style (17th ed.) Citation-. Encyclopedia Britannica - Vol - 1.
MLA (9th ed.) Citation-. Encyclopedia Britannica - Vol - 1.