Engels, F. (1986). DIALECTICS OF NATURE. PROGRESS PUBL.
Chicago Style (17th ed.) CitationEngels, Friedrich. DIALECTICS OF NATURE. MOSCOW: PROGRESS PUBL, 1986.
MLA (9th ed.) CitationEngels, Friedrich. DIALECTICS OF NATURE. PROGRESS PUBL, 1986.
Warning: These citations may not always be 100% accurate.