Hoffman, Oscar. “Present-Day Achievements in the Environment Sociology, A Simpozion on Wondschoten, Holland, June 17-20, 1992”. Sociologie Românească 4, no. 2 (February 26, 2013): 241-245. Accessed April 18, 2026. https://revistasociologieromaneasca.ro/sr/article/view/1993_2_hoffman_oscar.