KÖVICS, György. ”FOR CROP PROTECTION” Establishment medallion in honour of Antal Gulyás (1884-1980). Acta Agraria Debreceniensis, [S. l.], n. 43, p. 5–10, 2011. DOI: 10.34101/actaagrar/43/2629. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/2629.. Acesso em: 3 may. 2024.