000 00390nam a22001217a 4500
082 _a363.7
_bnat
_cD
245 _aNature engineering and civil engineering works
260 _aNetherlandes
_bCentre of Agricultural publishing and Documentatin Wageningen
_c1991
300 _a139 p. :
_bill, ;
_c22 cm.
_eD
526 _a0
_b0
_c0
_d363_700000000000000_NAT
650 _aMCE
_9379
942 _2ddc
_cBK
999 _c542819
_d542819