000 00412nam a2200145Ia 4500
008 180612s9999||||xx |||||||||||||| ||und||
020 _a925100160X
041 _aen
082 _a627
100 _aKraatz D B
245 0 _aSmall hydraulic structures : prepared with the support of the international comm
260 _aRome
_bFood and Agriculture Organiza
_ction of the1982
300 _aXV, 407 S
942 _cPR
999 _c40254
_d40254