Deep Ecology

Vanzetti Speech to the Court

The Case for Socialism

Essays - Neither Victims Nor Executioners

Evolutionary Socialism

Capitalism in the Ancient World

A book of verse

Marxism and Darwinism

TVP Magazine Issue No. 07

Niklas Luhmann - Law as a Social System

Humanism and Its Aspirations

The Doctrine of the Social Contract

Instead of a Book

Bolívar y Ponte