biblatex bibliography: double hanging indent

Question

For a particular journal which I am submitting to, I must use the Chicago author-date style. So I am using biblatex-chicago style.

But each bibliography item must have double indentation, as shown in the attached image.

I just don't know what to do to fulfill that format requirement, so I would be much obliged if someone helps me out.

Answer 1

philosophy-modern from the biblatex-philosophy style family is a good start for this.

With only little change (the publocformat=loccolonpub option - which is specific to biblatex-philosophy, and \renewcommand*{\newunitpunct}{\addperiod\space}) we get

\documentclass[american]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}
\usepackage[backend=biber, style=philosophy-modern, publocformat=loccolonpub]{biblatex}

\addbibresource{biblatex-examples.bib}

\renewcommand*{\newunitpunct}{\addperiod\space}

\begin{document}
\cite{sigfridsson,worman,geer,knuth:ct:a,knuth:ct:b,knuth:ct:c,companion,westfahl:space,brandt}

\printbibliography
\end{document}