Report of the fourth session of the Working Party on Soil Classifica tion and Survey of the European Commission on Agriculture, Lisbon, Port ugal, 6-10 March, 1963. - Food and Agriculture Organization of the United Nations. European Commission on Agriculture (Rome : Fod and Agriculture Organisation of the United Nations, 1963)
Cover title : Fourth session of the working party on Soil classifica tion and survey.
Keywords: Soils -- Addresses, essays, lectures; Soils -- Classification; Soil surveys