Shortened footnote and citation:
{{sfn|Wagner|2011|p=}}
* {{cite book | last=Wagner | first=Günter | title=Waschmittel | publisher=John Wiley & Sons | date=2011-08-04 | isbn=978-3-527-64366-0 | language=de}}
Named reference:
<ref name="a337">{{cite book | last=Wagner | first=Günter | title=Waschmittel | publisher=John Wiley & Sons | date=2011-08-04 | isbn=978-3-527-64366-0 | language=de | page=}}</ref>