Lenin: Original Postscript to the Article 'The Development of Revolutionary Strikes and Street Demonstrations' https://www.marxists.org/archive/lenin/works/1913/jan/00b.htm
Economic Manuscripts: Theories of Surplus-Value, Addenda to Part 1 https://marxistleninists.org/M&E/1863/theories-surplus-value/add1.htm
You can follow us in other languages. Visit our website for more information https://wordsmith.social/protestation/
Doctoral Dissertation of Karl Marx — Chapter 3 http://hiaw.org/defcon6/works/1841/dr-theses/ch03.html