Sherman Township, Calhoun County, South Dakota (304-1004)
MLA
Plowden, David (1932). Sherman Township, Calhoun County, South Dakota (304-1004). Box 182. 2004 March. https://collections.library.yale.edu/catalog/2044538.
APA, 6th edition
Plowden, David (1932). (["Box 182"])(2004 March)[Sherman Township, Calhoun County, South Dakota (304-1004)]. https://collections.library.yale.edu/catalog/2044538.