The LaTeX export back-end accepts two attributes for quote blocks:
‘:environment’, for an arbitrary quoting environment (the default
value is that of org-latex-default-quote-environment: "quote") and
‘:options’. For example, to choose the environment ‘quotation’,
included as an alternative to ‘quote’ in standard LaTeX classes:
#+ATTR_LATEX: :environment quotation #+BEGIN_QUOTE some text... #+END_QUOTE
To choose the ‘foreigndisplayquote’ environment, included in the LaTeX package ‘csquotes’, with the ‘german’ option, use this syntax:
#+LATEX_HEADER:\usepackage[autostyle=true]{csquotes}
#+ATTR_LATEX: :environment foreigndisplayquote :options {german}
#+BEGIN_QUOTE
some text in German...
#+END_QUOTE
which is exported to LaTeX as
\begin{foreigndisplayquote}{german}
some text in German...
\end{foreigndisplayquote}