330 Bla A Blake, William J An American looks at Karl Marx. New York, Cordon [c1939] 746 p. 21 cm. "Bibliographical guide": p. 663-699 <a id= "rdfa" about="http://bnjm.sld.cu/cgi-bin/item.py?idficha=bcuhcgrlyfof0120068" property = "oa:link" href="http://www.worldcat.org/oclc/249288097">WorldCat</a>