Wydawnictwo a5 is the business in Poland founded by Ryszard Krynicki.
According to PR-model, wydawnictwoa5.pl is ranked 807,029th in multilingual Wikipedia, in particular this website is ranked 29,808th in Polish Wikipedia.
The website is placed before culbertsonmansion.com and after sitteninthehills64.blogspot.com in the BestRef global ranking of the most important sources of Wikipedia.