it looks like there is no Springer bibtex style for their humanities bibliography (e.g. they want full first names!) Has anyone seen or written one?
Springer writes in its Key_Style_Points_HumanitiesRef.pdf (0.4 MB):
This style is based on the reference list style as suggested by the Chicago Manual of Style (15th edn.). In order to facilitate automated processing, the citation of Internet publications has been modified and follows the standard structure of journal and book citations.
If you do not need any internet publications in your reference, you will be safe to use the Chicago style. If you use online references and they appear different to the ones shown in the above PDF, you should show an MWE with that special case here and someone will try to fix that.
PS: As Springer is quite practised in LaTeX, it might also help to write an email and to ask for a template (some book of your taste without content for example).