Martin, B. (2008). Ethical Marxism: The categorical imperative of liberation. Open Court.
Lua i Stíl Chicago (17ú heag.)Martin, Bill. Ethical Marxism: The Categorical Imperative of Liberation. Chicago, Illinois: Open Court, 2008.
Lua MLA (9ú heag.)Martin, Bill. Ethical Marxism: The Categorical Imperative of Liberation. Open Court, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.