Shortened footnote and citation:
{{sfn | Krömer | 1991 | p=}}
* {{cite book | last=Krömer | first=Eckart | title=Kleine Wirtschaftsgeschichte Ostfrieslands und Papenburgs | publisher=Soltau-Kurier-Norden | publication-place=Norden | date=1991 | isbn=3-922365-93-0 | language=de}}
Named reference:
<ref name="b151">{{cite book | last=Krömer | first=Eckart | title=Kleine Wirtschaftsgeschichte Ostfrieslands und Papenburgs | publisher=Soltau-Kurier-Norden | publication-place=Norden | date=1991 | isbn=3-922365-93-0 | language=de | page=}}</ref>