-. (1995). The new encyclopaedia britannica vol. 20: Macropaedia(knowledge in depth).-- 15th edition. Encyclopaedia Britannica.
Citación estilo Chicago-. The New Encyclopaedia Britannica Vol. 20: Macropaedia(knowledge in Depth).-- 15th Edition. Chicago: Encyclopaedia Britannica, 1995.
Cita MLA-. The New Encyclopaedia Britannica Vol. 20: Macropaedia(knowledge in Depth).-- 15th Edition. Encyclopaedia Britannica, 1995.
Warning: These citations may not always be 100% accurate.