A Kashubian Idiolect in the United Statesby Jan Louis PerkowskiBrooks · American Association of Teachers of Slavic and East European Languages (AATSEEL)1971PDF330 KB
Vampire Lore: From the Writings of Jan Louis Perkowskiby Jan Louis PerkowskiKrys · Canadian Slavonic Papers2009PDF410 KB
A Kashubian Idiolect in the United States. By Jan Louis Perkowski. Indiana University Publications, Language Science Monographs, vol. 2. Bloomington: Indiana University. The Hague: Mouton, 1969. 371 pp. $10.00, paper.Magner · University of Illinois at Urbana-Champaign1971PDF196 KB
