CTAN has a new package: biblatex-apa

[CTAN Announcements]

This package has been installed at tug.ctan.org and should soon be at your 
local mirror.

Thanks again,
Jim Hefferon
Saint Michael's College

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The following information was provided by our fellow contributor:

Name of contribution: biblatex-apa
Author's name: Philip Kime
Location on CTAN: /macros/latex/exptl/biblatex-contrib 
Summary description: biblatex citation and reference style for APA 
  (American Psychological Association) publications
License type: lppl

Announcement text: 
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This is a fairly complete biblatex style (citations and
references) for APA (American Psychological Association)
publications. It implements and automates most of the
guidelines in the APA 5th edition style guide for citations
and references with a few (documented) exceptions (which are
mainly currently impossible to automate in principle for any
bibtex-backed system). An example document is also given
which typsets every citation and reference example in the
APA 5th edition style guide.
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This package is located at 
   http://tug.ctan.org/tex-archive/macros/latex/exptl/biblatex-contrib/biblatex-apa
.  More information is at
   http://tug.ctan.org/pkg/biblatex-apa
(if the package is new it may take a day for that information to 
appear).  We are supported by the TeX Users Group http://www.tug.org .  
Please join a users group; see http://www.tug.org/usergroups.html .