Federal Writer's Project. (1985). Eureka 1887-1937 (2. Auflage.). Eureka's Golden Julilee Organization.
芝加哥风格引文Federal Writer's Project. Eureka 1887-1937. 2. Auflage. Eureka, South Dakota: Eureka's Golden Julilee Organization, 1985.
MLA引文Federal Writer's Project. Eureka 1887-1937. 2. Auflage. Eureka's Golden Julilee Organization, 1985.
警告：这些引文格式不一定是100％准确.