This material is from "The Battle for the Outskirts of Warsaw in August 1920" (Bój Na Przedmościu Warszawy w Sierpniu 1920r).
This is the visual organisation charts. The full order of battle with numbers is here (pdf).
This is the official structure of an infantry division.
Each Infantry Regiment has an official strength of:
(Note that there is no equivalent for a Polish cavalry division, as they were merely two brigades placed together with no extra structure. Even the brigades were little more than three or so regiments with some artillery.)
As the actual divisions below show, there were many deviations from official structure.