Shortened footnote and citation:
{{sfn|Markl|2004|p=}}
* {{cite book | last=Markl | first=Gregor | title=Minerale und Gesteine | publisher=Spektrum Akademischer Verlag | publication-place=München | date=2004 | isbn=978-3-8274-1495-3 | language=de}}
Named reference:
<ref name="a171">{{cite book | last=Markl | first=Gregor | title=Minerale und Gesteine | publisher=Spektrum Akademischer Verlag | publication-place=München | date=2004 | isbn=978-3-8274-1495-3 | language=de | page=}}</ref>