TY - BOOK AU - Amer, Mohamed H. AU - Rycroft, David W. TI - Prospects drainage of clay soils T2 - FAO irrigation and drainage paper SN - 9251036241 U1 - 631.45 21st ed. PY - 1995/// CY - Rome PB - Food and Agriculture Organization of the United Nations KW - Clay soils KW - Drainage ER -