Inventory of federal archives in the states : series IV, the Department of War. no. 14, Iowa / prepared by the Survey of Federal Archives, Division of Professional and Service Projects, Work Projects Administration ; the National Archives, cooperating sponsor. (OCLC #994006495)

Sometimes it’s helpful to get ebook metadata from the print record, like when the technician doing the digitization has covered the publication information with their hand:

264 _1 ǂa Des Moines, Iowa : ǂb Historical Records Survey Project,
    ǂc 1940.

We did not bracket the information, as the record is provider-neutral, and covers any potential complete copies as well (of whose content we can be reasonably confident).