Böhm-Bawerk's Criticism of Marx
- Disputation by the Marxist author Rudolf Hilferding.
- http://www.marxists.org/subject/economy/authors/hilfer/index.htm

Marxian Economics
- A survey from the History of Economic Thought website with bibliography and links.
- http://cepa.newschool.edu/het/schools/marxian.htm

Primer on Marxian Economics
- A chapter from the Essential Principles of Economics provided by Drexel University.
- http://william-king.www.drexel.edu/top/prin/txt/marx/ApxToC.html

Political Economy
- Marx's writings on economics, reactions to Marx's economics and the Glossary of Political Economy from the Encyclopedia of Marxism.
- http://www.marxists.org/subject/economy/index.htm

Marxism
- An article in the Concise Encyclopedia of Economics by David L. Prychitko.
- http://www.econlib.org/library/Enc/Marxism.html