Shortened footnote and citation:
{{sfn | Mahle | 2018 | p=}}
* {{cite book | last=Mahle | first=Martin | title=Mercedes-Benz Clr | publisher=Createspace Independent Publishing Platform | date=2018-08-20 | isbn=978-1-7230-2178-7 | language=de}}
Named reference:
<ref name="e900">{{cite book | last=Mahle | first=Martin | title=Mercedes-Benz Clr | publisher=Createspace Independent Publishing Platform | date=2018-08-20 | isbn=978-1-7230-2178-7 | language=de | page=}}</ref>