Shortened footnote and citation:
{{sfn | Butter | Knight | 2020 | p=}}
* {{cite book | last=Butter | first=Michael | last2=Knight | first2=Peter | title=Routledge Handbook of Conspiracy Theories | publisher=Conspiracy Theories | publication-place=Abingdon, Oxon ; New York, NY | date=2020 | isbn=978-0-8153-6174-9}}
Named reference:
<ref name="m691">{{cite book | last=Butter | first=Michael | last2=Knight | first2=Peter | title=Routledge Handbook of Conspiracy Theories | publisher=Conspiracy Theories | publication-place=Abingdon, Oxon ; New York, NY | date=2020 | isbn=978-0-8153-6174-9 | page=}}</ref>