Potter, P. (2003). Frank Day, Konkow Maidu (1902–1976). The Water Test (c. 1970–1975). Centers for Disease Control and Prevention.
Chicago-tyylinen lähdeviittausPotter, Polyxeni. Frank Day, Konkow Maidu (1902–1976). The Water Test (c. 1970–1975). Centers for Disease Control and Prevention, 2003.
MLA-viitePotter, Polyxeni. Frank Day, Konkow Maidu (1902–1976). The Water Test (c. 1970–1975). Centers for Disease Control and Prevention, 2003.
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