00241nam a2200097Ia 4500080001900000100001600019245004300035260003000078300001600108583001900124  a07.01.01 S8965  aStrak, John  aMeasurement of agricultural protection  bMacmillanaLondonGBc1982  axvi, 120 p.  c3/7/00kM2LMGR