آثار جمع‌آوری‌شده مارکس-انگلس، جلد ۴۵ - مارکس و انگلس: نامه‌ها: ۱۸۷۴-۱۸۷۹

Marx/Engels Collected Works (MECW) is the largest collection of translations into English of the works of Karl Marx and Friedrich Engels. It contains all works published by Marx and Engels in their lifetimes and numerous unpublished manuscripts and letters. The Collected Works, which was translated by Richard Dixon and others, consists of 50 volumes. It was compiled and issued between 1975 and 2005 by Progress Publishers (Moscow) in collaboration with Lawrence and Wishart (London) and International Publishers (New York City).