Engels, F. (1975). Anti-Duhring: Herr eugen Duhring's: Revolution in science. Progress Publishers.
Cita Chicago Style (17a ed.)Engels, Frederick. Anti-Duhring: Herr Eugen Duhring's: Revolution in Science. Moscow: Progress Publishers, 1975.
Cita MLA (9a ed.)Engels, Frederick. Anti-Duhring: Herr Eugen Duhring's: Revolution in Science. Progress Publishers, 1975.
Precaución: Estas citas no son 100% exactas.