For a one-off document where there is only one (or very few) entries that require special sorting treatment, it is not unreasonable to create a 'special' entry and use that entry instead.
\documentclass[12pt]{article}
\usepackage{natbib}
\newcommand{\noop}[1]{}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@Article{adams1986,
author = {Adams, Anthony},
title = {Article Title},
journal = {Journal},
year = 1986,
volume = 46,
pages = {1--35},
}
@Article{zedson2013,
author = {Zedson, John},
title = {Zarticle title},
journal = {Journal},
year = 2013,
volume = 22,
pages = {141--181},
}
@Article{zedson2013-special,
author = {{\noop{AAA}}Zedson, John},
title = {Zarticle title},
journal = {Journal},
year = 2013,
volume = 22,
pages = {141--181},
annote = {NOTE: use for special sorting},
}
\end{filecontents}
\begin{document}
\cite{adams1986}
\cite{zedson2013}
\cite{zedson2013-special}
\bibliographystyle{plain}
\bibliography{\jobname}
\end{document}
If you use biber, an easy way to achieve unorthodox/special sorting is to add a sortkey = {<sortkey>} to the entry in question. From the biblatex manual (§ 2.2.3):
A field used to modify the sorting order of the bibliography. Think of
this field as the master sort key. If present, biblatex uses this
field during sorting and ignores everything else, except for the
presort field. Please refer to § 3.5 for further details. This field
is consumed by the backend processing and does not appear in the .bbl.
If only using (an alphabetical) biblatex (style) with BibTeX as the backend, you can do something similar by utilizing the sortname field.
biber+biblatex. – jon May 20 '13 at 20:22.bibfile and modify that one. If the change is just for one article, it's the simplest way to go. Otherwise, switch tobiblatex– egreg May 20 '13 at 21:42