000 004030000a22001450004500
245 _aOptimum use of water resources
100 _aDe Ridder, N.A.
100 _aErez, A.
260 _aWageningen
_bInternational Institute for Land Reclamation and Improvement
_c1977
300 _axii, 250p. : ill. (some col.)
500 _aIndex included
080 _a627.1
_bD4
041 _aEN
942 _cBK
999 _c111676
_d111676