books.google.co.in - Publisher's description: First published in 1978, this book rapidly established itself as a classic of modern Marxism. Cohen's masterful application of advanced philosophical techniques in an uncompromising defense of historical materialism commanded widespread admiration. In the ensuing twenty years,...http://books.google.co.in/books/about/Karl_Marx_s_Theory_of_History.html?id=qXp2L_OzrzEC&q=labour+power&utm_source=gb-gplus-shareKarl Marx's Theory of History