Zalech, Mirosław, and Agnieszka Kamińska. 2014. “DETERMINANTS AND DIRECTIONS OF THE DEVELOPMENT OF TOURISM IN COMMUNES FROM THE EASTERN PART OF WARMIŃSKO-MAZURSKIE PROVINCE”. Acta Scientiarum Polonorum. Oeconomia 13 (2), 137-49. https://js.wne.sggw.pl/index.php/aspe/article/view/4125.