1. Morphological characteristics of gypsiferous soils on Dour project and Hasawa desert (Iraq);Al-Mukhtar,1982
2. Soil Classification for England and Wales (Higher Categories);Avery;Soil Surv. Tech. Monogr.,1980
3. Micromorphological Analysis of Soils;Bal,1973
4. Fabric and Mineral Analysis of Soils;Brewer,1964
5. The basis of interpretation of soil micromorphological data;Brewer;Geoderma,1972