00293    a2200097   4500020001500000082001300015245008100028260005100109300001900160650001600179  a8120404971  a631bUSE  aThe use of plastics in agriculturebproceedings of xi international congress  aNew DelhibOxford & IBH Publishingc1990g1990  axv,834p.c29cm  aAgriculture