This looks very much like Chicago note style.
I do not think it is possible to produce Chicago note style using a bst file. You could do it if you wanted a numbered bibliography and numbered citations (i.e., [1]), but as you've shown it in your example, there are no numbers, so normally such a bibliography would use footnotes for citations.
If you are willing to move from plain bibtex to biblatex, you could produce it using the biblatex-chicago package:
\documentclass{article}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@article{abraham,
Author = {Abraham, Ralph},
Date-Added = {2016-08-01 19:33:58 +0000},
Date-Modified = {2018-03-04 22:47:39 +0000},
Journal = {MAPS Bull.},
Number = {1},
Pages = {8--10},
Title = {Mathematics and the Psychedelic Revolution: Recollections of the Impact of the Psychedelic Revolution on the History of Mathematics and my Personal Story},
Volume = {18},
Year = {2008}}
\end{filecontents}
\usepackage{biblatex-chicago}
\addbibresource{\jobname.bib}
\begin{document}
\null\vfill
Filler text \autocite{abraham}. Filler text \autocite{abraham}.
\printbibliography
\end{document}

makebstfrom https://ctan.org/pkg/custom-bib and get your own style that you can then modify if necessary. And then there isbiblatex. I know of nobiblatexstandard style that is exactly like that off the top of my head, but with a few (and maybe a few more) modifications you can get there. – moewe Aug 15 '18 at 14:57