000 00417nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aHilbert, D.W., Logan, J.A.
245 _aReviews of the population biology of the migratory grasshopper : Melanoplus sang
260 _aColorado
260 _c1981
300 _a0.916666667
440 _aNo. 577-S; Colorado Experiment
901 _pS34074
942 _cB
_2udc
999 _c132375
_d132375