TY - BOOK ED - ASCE TI - Journal of Irrigation and Drainage Engineering; Vol 116; No. 1; Jan/Feb 1990 U1 - 627.5405 PY - 1990/// CY - AMERICA PB - AMERICAN SOCCIETY OF CIVIL ENGINEERS KW - DRAINAGE KW - IRRIGATION KW - IRRIGATION AND DRAINAGE ENGINEERING KW - CIVIL ER -