For publication type of "book", we now display edition following the publisher name as per Skype conversation with Mark:

"ah, well, we'll need to change the placement of edition, as it's not part of the title. We haven't worked that out in the reference tests yet at http://test.elementascience.org/article/info:doi/10.12952/journal.elementa.999998. Have a look at the MS Normalization guidelines, http://home.elementascience.org/resources/innodata/elementa-manuscript-normalization/#7-4-5-edition. Edition follows title in a normal reference, but is not part of the title. I think we should place it after the publisher name in our (heretofore unheard of) HTML reference style."