Szeliga-Duchnowska , Anna, i Mirosława Szewczyk. 2018. „Uniformed Service officers’ Age As a Variable Differentiating the Perception of Counterproductive Work Behaviors”. Kultura-Społeczeństwo-Edukacja 14 (2):205-19. https://doi.org/10.14746/kse.2018.14.15.