Lua APA (7ú heag.)

Engels, F. (1954). Dialectics of nature. Progress Pub.

Lua i Stíl Chicago (17ú heag.)

Engels, Friedrich. Dialectics of Nature. Moscow: Progress Pub, 1954.

Lua MLA (9ú heag.)

Engels, Friedrich. Dialectics of Nature. Progress Pub, 1954.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.