Marx, Karl, 1818-1883. The letters of Karl Marx / selected and translated with explanatory notes and an introd. by Saul K. Padover. - Englewood Cliffs, N.J. : Prentice-Hall, 1979. - xxvii, 576 p., : ill. ; 24 cm. Includes indexes. Bibliography : p. 532-534. engger. ISBN: 0135315336 Subjects--Topical Terms: Communists--Correspondence.Communists--Biography.