I guess you should change
#+LATEX_HEADER:
 \usepackage[citestyle=authoryear-icomp,bibstyle=authoryear,
 hyperref=true,backref=false,maxcitenames=3,url=true,
backend=biber,natbib=true]
 {biblatex}

to

#+LATEX_HEADER: \usepackage[american]{babel}

#+LATEX_HEADER: \usepackage{csquotes}#+LATEX_HEADER:
\usepackage[style=apa]{biblatex}#+LATEX_HEADER:
\DeclareLanguageMapping{american}{american-apa}

I am not a biber user. See
http://mirrors.ibiblio.org/CTAN/macros/latex/contrib/biblatex-contrib/biblatex-apa/biblatex-apa.pdf
for more details.


John

-----------------------------------
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu


On Thu, May 25, 2017 at 3:57 PM, Lars Bjørndal <lars@lamasti.net> wrote:

> On Thu, May 25, 2017 at 05:36:07PM +0100, Eric S Fraga wrote:
> > On Thursday, 25 May 2017 at 11:47, Lars Bjørndal wrote:
> > > Hi, list!
> > >
> > > I'm currently writing an exam in org-mode with org-ref, installed from
> > > elpa. I think the institution expects to get the referances in apa
> > > style. So I wonder if I can do that, and how I can do it.
> >
> > Have you tried?  What happens?
>
> Well, to be honest, I don't know what to replace the line in question
> with. I'm a novice both in LaTeX and in org-mode/org-ref.
>
> Lars
>
>