Shortened footnote and citation:
{{sfn | Gurruchaga | 2001 | p=}}

* {{cite book | last=Gurruchaga | first=Carmen | title=Los jefes de ETA | publisher=Esfera de los Libros | publication-place=Madrid | date=2001 | isbn=84-9734-002-7 | oclc=ocm48639232 | language=es}}


Named reference:
<ref name="f006">{{cite book | last=Gurruchaga | first=Carmen | title=Los jefes de ETA | publisher=Esfera de los Libros | publication-place=Madrid | date=2001 | isbn=84-9734-002-7 | oclc=ocm48639232 | language=es | page=}}</ref>