1. Ferrolysis, a hydromorphic soil forming process;Brinkman;Geoderma,1970
2. X-ray diffraction camera for microtechniques;Chesley;Rev. Sci. Instr.,1947
3. Classification des sols;C.P.C.S.,1967
4. Landforms and soils in eastern Surinam (South America);De Boer;Agric. Res. Rept., PUDOC, Wageningen,1972
5. Key to soil units for the soil map of the world;Dudal,1970