Shortened footnote and citation:
{{sfn|Williams|Williams|Arlott|Williams|1979|p=}}
* {{cite book | last=Williams | first=John George | last2=Williams | first2=Andrew E. | last3=Arlott | first3=Norman | last4=Williams | first4=John George | title=Orchideen Europas: mit Nordafrika und Kleinasien | publisher=BLV Verl.-Ges | publication-place=München | date=1979 | isbn=3-405-11901-4 | language=de}}
Named reference:
<ref name="l821">{{cite book | last=Williams | first=John George | last2=Williams | first2=Andrew E. | last3=Arlott | first3=Norman | last4=Williams | first4=John George | title=Orchideen Europas: mit Nordafrika und Kleinasien | publisher=BLV Verl.-Ges | publication-place=München | date=1979 | isbn=3-405-11901-4 | language=de | page=}}</ref>