000 00305nam a2200121Ia 4500
008 211209s1977 xx 000 0 und d
041 _aeng
082 _a631.7 N77 SEH
100 _aSEHGAL P P
245 _aDESIGN OF IRRIGATION STRUCTURES
260 _aNEW DELHI
_bKHANNA PUBLISHERS
_c1977
300 _a246
999 _c15771
_d15771