Search on site: Main page History Gallery Contact Welcome to the website of the Housing Cooperative "Centrum" in Ostrołęka Organization of the Cooperative. Articles of Association of the Cooperative. Resolutions of the Supervisory Board. Regulations. Tenders Information on emergency shifts . Information on emergency shifts To view files in PDF format, you need Adobe Acrobat Reader, which can be downloaded for free from the Adobe website (select the appropriate version for the operating system on the website; the program is also available on other websites). Housing Cooperative Centrum 07-410 Ostrołęka, ul. Sikorskiego 45