Media type: E-Article Title: 5. The agricultural sub-system Contributor: Marstrand, Pauline K.; Pavitt, K.L.R. Published: Elsevier BV, 1973 Published in: Futures, 5 (1973) 1, Seite 56-65 Language: English DOI: 10.1016/0016-3287(73)90057-8 ISSN: 0016-3287 Keywords: Sociology and Political Science ; Development ; Business and International Management Origination: Footnote: