Young, R.M. (1998) Marxism and the History of Science The Human Nature Review. "The defining feature of Marxist approaches to the history of science is that the history of scientific ideas, of research priorities, of concepts of nature and of the parameters of discoveries are all rooted in historical forces which are, in the last instance, socio-economic. ... There are variations in how literally this is taken ... There is a continuum of positions."
