000 00418 a2200157 4500
082 _a631.62
_bPIC
090 _c22177
_d34830
100 _aPickels, George W.
245 _aDrainage and flood-control engineering
250 _a2nd ed.
260 _aNew York
_bMcGraw-Hill Book Company
_c1925
_g1941
300 _axii,476p.
_c22cm
650 _aAnimal pests
650 _aPlant injuries, diseases, pests
942 _cL
999 _c49575
_d49575