I’ve just finished the large coffee-table sized 2012 edition of the aforementioned title, made possible by Skyler Collins (the original volume was published in 1993 by the Ludwig Von Mises Institute), and edited by Yuri N. Maltsev. This is a highly recommended, incisive indictment of both Marx and his philosophy. I urge one and all to read it. A free electronic version may be read or downloaded here — though I do warmly approve of and prefer the jumbo print version:
http://mises.org/books/requiem.pdf
Alex