Buena Vista County, Iowa (686-24)
MLA
Plowden, David (1932). Buena Vista County, Iowa (686-24). Box 29. 1986 June. https://collections.library.yale.edu/catalog/2040125.
APA, 6th edition
Plowden, David (1932). (["Box 29"])(1986 June)[Buena Vista County, Iowa (686-24)]. https://collections.library.yale.edu/catalog/2040125.