ECA: Estudios Centroamericanos. “Los Comunistas Polacos Se Dedican a ‘sacristanear’”. ECA: Estudios Centroamericanos 21, no. 215 (May 31, 1966): 108–109. Accessed February 13, 2026. https://revistas.uca.edu.sv/index.php/eca/article/view/10893.