Engels, Friedrich, 1820-1895. Dialectics of nature, by Frederick Engels; translated and edited by Clemens Dutt with a preface and notes by J.B.S. Haldane, F.R.S. - New York, International Publishers [c1940] - xvi, 383 p. diagr. 22 cm. LCCN: 40031610 Subjects--Topical Terms: Dialectic (Science)Science--Philosophy. LC Class. No.: Q175 / .E48 Dewey Class. No.: 501 ENG