00359nam a22001217a 450000500170000008200150001710000140003224500870004625000120013326000420014530000290018750000210021620260430073651.0  a627.52 IQB  aIqbal Ali  aIrrigation and Hydraulic Structures :btheory, Design and Practice /cDr.Iqbal Ali  a2nd ed.  aKarachi :bFarhat Iqbal Press,c2003.  axx,493p. :bill. ; 25cm.  aincludex inedex.