APA Citation

Marx, C., & Engels, F. (1971). Epistolario. MX: Grijalbo.

Chicago Style Citation

Marx, Carlos, and Federico Engels. Epistolario. MX: Grijalbo, 1971.

MLA Citation

Marx, Carlos, and Federico Engels. Epistolario. MX: Grijalbo, 1971.

Warning: These citations may not always be 100% accurate.