European Society for Soil Conservation, International Congress of the European Society for Soil Conservation, & Rickson, R. J. (1994). Conserving soil resources: European perspectives. CAB International.
Chicago-viite (17. p.)European Society for Soil Conservation, International Congress of the European Society for Soil Conservation, ja R. J. Rickson. Conserving Soil Resources: European Perspectives. Wallingford, UK: CAB International, 1994.
MLA-viite (9. p.)European Society for Soil Conservation, et al. Conserving Soil Resources: European Perspectives. CAB International, 1994.
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