Não informado. (1970). Socialist revolution. Center for Social Research and Education.
Chicago-referens (17:e uppl.)Não informado. Socialist Revolution. San Francisco, Calif: Center for Social Research and Education, 1970.
MLA-referens (8:e uppl.)Não informado. Socialist Revolution. Center for Social Research and Education, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.