STUART, G. G. (1988). American's ancient cities. The National Geographic Society.
芝加哥风格引文STUART, Gene G. American's Ancient Cities. Washingtan DC: The National Geographic Society, 1988.
MLA引文STUART, Gene G. American's Ancient Cities. The National Geographic Society, 1988.
警告：这些引文格式不一定是100％准确.