Mettler, H. (1987). Eureka 1887-1987: Centennial Anniverary Book; The Second Fifty Years. Western Painting Company.
Chicago-Zitierstil (17. Ausg.)Mettler, Howard. Eureka 1887-1987: Centennial Anniverary Book; The Second Fifty Years. Aberdeen, South Dakota: Western Painting Company, 1987.
MLA-Zitierstil (8. Ausg.)Mettler, Howard. Eureka 1887-1987: Centennial Anniverary Book; The Second Fifty Years. Western Painting Company, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.