Skip to main content


Ostrołęka (ôstrôwĕn´kä), Rus. Ostrolenka, town (1993 est. pop. 52,400), Mazowieckie prov., NE Poland, on the Narew River. It is a railway junction and a manufacturing center where pulp and paper, lumber, and foodstuffs are produced. Chartered in 1427, it passed to Prussia in 1795 and to Russia in 1815. It reverted to Poland in 1920. The town has several churches built in the 14th and 17th cent.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Ostrołęka." The Columbia Encyclopedia, 6th ed.. . 19 Apr. 2019 <>.

"Ostrołęka." The Columbia Encyclopedia, 6th ed.. . (April 19, 2019).

"Ostrołęka." The Columbia Encyclopedia, 6th ed.. . Retrieved April 19, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.