ThomasV kindly pointed me to the page http://wikisource.org/wiki/Wikisource:Subdomains_coordination Thank you sir.
I find the following
|ar=: |bn=: |cs=Autor: |fr=Auteur: |hr=Autor: |hy=: |it=Autore: |la=Scriptor: |no=Forfatter: |pt=Autor: |sv=Författare: |th=: |tr=Kisi: |vi=Tác_gia:
which I will code into place
interestingly for the language component of the main part of [[:Commons:Template:Wikisource]] I only find the following languages in place
|en=[[Wikisource]] has a page about this at: |es=Verlo en [[Wikisource]] : |fi=[[:fi:Wikiaineisto|Wikiaineistossa]] on aiheesta lisää seuraavalla sivulla: |fr=Voir sur [[Wikisource]] : |it=[[Wikisource]] ha una pagina su questo argomento: |nds=Op [[Wikisource]] gifft dat dor ok wat to: |pr=Veja-lo no [[Wikisource]] : |vec=Varda su [[Wikisource]]:
so some wikis may wish update that.
Regards, Andrew