1. The Political Economy of Soil Erosion in Developing Countries;Blaikie,1985
2. Impressions of an anarchist landscape;Breitbart;Antipode,1975
3. The first years of the Detroit geographical expedition: A personal report. Field Notes Discussion Paper No. 1;Bunge,1969
4. Structural Marxism and human geography: A critical assessment;Duncan;Annals Association of American Geographers,1982
5. A Contemporary Critique of Historical Materialism;Giddens,1981