Tomczak, Franciszek. “Activities of Agricultural Economics Committee of Polish Academy of Science in Its 50th Anniversary – Facts, Opinions, Reflections”. Annals of Agricultural Economics and Rural Development 94, no. 2 (March 28, 2008): 15–26. Accessed August 30, 2025. https://rnr.sggw.edu.pl/article/view/8836.