See, "Karl Marx and the Anarchists, " by Paul Thomas. Published by Routledge.
http://www.google.com/search?q=Karl+Marx+and+the+Anarchists
Heh.>...The alternative Marx: Marx and the anarchists split Chapter 7: Marx and the anarchists split, part I. Karl K. Marx lays it out. 'Yo motherfucker,' Marx greeted. Proudhon was at a loss. ... http://www.iol.ie/~mazzoldi/toolsforchange/marx/marx7.html
M.P.