To make a category for non-fiction books published in a given decade

e.g. Category:1970s non-fiction books

{{Non-fiction book decade}}

No parameters are needed


"https://si.wikipedia.org/w/index.php?title=සැකිල්ල:Non-fiction_book_decade/doc&oldid=683806" වෙතින් සම්ප්‍රවේශනය කෙරිණි