Engels, F. (1954). Dialectics of nature. Foreign Languages Pub. House,.
Chicago Style (17th ed.) CitationEngels, Friedrich. Dialectics of Nature. Moscow: Foreign Languages Pub. House,, 1954.
ציטוט MLAEngels, Friedrich. Dialectics of Nature. Foreign Languages Pub. House,, 1954.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.