Books:
Bachofen. An English Translation of Bachoffen's Mutterrecht (Mother Right) (1861): A Study of the Religious and Juridical Aspects of Gynecocracy in the Ancient World (2007);
Engels. The Origin of the Family, Private Property and the State (2010, in German 1884);
Gumplowicz. Outlines of Sociology (2020, in German 1885).