When is the data about pages written? And where is the data about publishing written?
The information about the total number of pages need not be stated, it is only optional. However, if we cite a part of a publication, article, paper in a collection or others, it is obligatory to specify the pages in the citation, e.g. s. 17-25. In case of a reference in the collection, if a specification of a particular page is available, we write down.
If it is the first impression, this information need not be used, but if it is any other impression, it is already obligatory to use it in the citation, e.g. 2. vyd., 3 rev. vyd.