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Here is what I want to accomplish, i.e., apa-style citation

\usepackage{babel}
\usepackage{csquotes}
\usepackage[style=apa]{biblatex}
\DeclareLanguageMapping{american}{american-apa}

But I received the following error message:

Package biblatex warning: No "backend" specified, using Biber backend. To use BibTex, load biblatex with the "backend=bibtex" option.

!Latex Error: Command \bibhand already defined Or name \end... illegal, see p. 192 of the manual.

I have no clue what this means.

closed as unclear what you're asking by moewe, Adam Liter, user31729, Werner, ChrisS Jun 2 '14 at 22:20

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • 3
    And can you please post a complete, minimal document allowing us to reproduce the problem? The first warning is harmless as it just informs you that biber will be the backend used; the error indicates that you are loading some other package that has defined \bibhang and we need the minimal document to see where the problem might be. – Gonzalo Medina May 29 '14 at 13:30

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