Shortened footnote and citation:
{{sfn | Porter | 2016 | p=}}
* {{cite book | last=Porter | first=Valerie | title=Mason's World Encyclopedia of Livestock Breeds, Types, and Varieties | publisher=CABI | publication-place=Boston, MA | date=2016-02 | isbn=978-1-78064-794-4}}
Named reference:
<ref name="b857">{{cite book | last=Porter | first=Valerie | title=Mason's World Encyclopedia of Livestock Breeds, Types, and Varieties | publisher=CABI | publication-place=Boston, MA | date=2016-02 | isbn=978-1-78064-794-4 | page=}}</ref>