McLellan, David. The thought of Karl Marx; an introduction [by] David McLellan. - [1st U.S. ed.] - New York, Harper & Row [c1971] - x, 237 p. 22 cm. Bibliography: p. [229]-233. ISBN: 0060129042 LCCN: 74181634 Subjects--Personal Names: Marx, Karl, 1818-1883. LC Class. No.: HX39.5 / .M28 1971