I have a citation for an image from Ancestry taken from a series of books. Here's my attempt at a citation:
“Connecticut Town Birth Records, pre-1870 (Barbour Collection),” database and images, Ancestry (http://www.ancestry.com : viewed 11 July 2016); imaging Lorraine Cook White, editor, The Barbour Collection of Connecticut Town Vital Records, 55 vols. (Baltimore: Genealogical Publishing Co., 1994-2002), [volume not given] : 216, entry for Celia Hills [Hill], b. 25 January 1816, Burlington.
This citation certainly doesn't point to the original records. None of the images from the books, or the Ancestry pages gives the exact provenance of the information in the books. The information in the book could have come from the Barbour Collection typed slips, bound volumes, or even a microfilm of either.
The Ancestry pages discuss what the Barbour Collection is and additional information can be found via a simple web search. The collection is a public record. Is there any reason to add "source of the source" information to this citation or is it adequate from that standpoint as-is?