Cieślik, Ewa, Anna Kościej, and Jerzy Cieślik. “Evaluation of HACCP Knowledge of the Catering Staff”. Journal of Agribusiness and Rural Development 27, no. 1 (December 31, 2013): 53-61. Accessed April 19, 2024. http://www1.up.poznan.pl/jard/index.php/jard/article/view/592.