000 00261 a2200121 4500
080 _a631.672.1
_bB 644 D
245 1 _aDrip irrigation
_cby S. Blass
260 _c1969
650 _aDrip Irrigation
100 1 _aBlass, S.
_d
300 _a16 p.
901 _a105027
999 _c45269
_d45269