1. Terrain evaluation by means of a data bank;Beckett;Geogr. J.,1972
2. The Relative Efficacy of Various Procedures for Soil Survey in Developing Countries and Elsewhere;Bie,1972
3. The costs of soil survey;Bie;Soils Fert.,1970
4. Quality control in soil survey, 2. The costs of soil survey;Bie;J. Soil Sci.,1971
5. The applications of aerial photographs in soil surveys;Buringh,1960