FERRACUTI, F. MICHAEL PRAWDIN, The Unmentionable Nechaev, Nueva York: Roy Publishers, Inc., 1963, 198 págs. Revista de Ciencias Sociales, [S. l.], n. 4, p. 410–412, 1964. Disponível em: https://revistas.upr.edu/index.php/rcs/article/view/9337. Acesso em: 16 ago. 2024.