[1] Sungur Savran and Ahmet Tonak, “Productive and Unproductive Labour: An Attempt at Clarification and Classification.” In Capital and Class: Summer 1999. [2] Ian Gough (1972) “ Marx's Theory of Productive and Unproductive Labour.” in New Left Review 76, December. [3] John Harrison (1973) “Productive and Unproductive Labour in Marx's Political Economy.”in Bulletin of the Conference of Socialist Economists, Autunmn. [4] Mandle, Ernest (1981) “Introduction” Capital Vol.II. Vintage Books, New York, p.46. [5] 马克思恩格斯全集:第26卷(第1册)[ M] .北京:人民出版社, 1975. [6] Mark, Karl (1973) Grundrisse, Penguin, Hamondsworth, p.87. [7] Mark, Karl (1976), “Results of immediate Process of Production.” Published as an Apendix in Capital Vol.I. Penguin, Hamondsworth, p.1938. [8] 亚当· 斯密.国民财富和性质的研究:上册[ M] .北京:商务印书馆, 1972.