TY - GEN AU - Siddique, Iqtidar H. TI - Irrigation and drainage engineering SN - 9694072891 AV - S613 .F56 U1 - 631.7 PY - 2003/// CY - Karachi PB - Royal Book Company KW - Drainage KW - Irrigation KW - Soils N1 - Includes bibliographies ER -