000 00604nam a2200193Ia 4500
919 _a006150
082 _a630.05
_bN49.48 "SER"
100 _aSparks, Donald L.
245 _aAdvances in agronomy. V.48 /ed. by Donald L. Sparks.
260 _aSan Diego
_bAP
_c1992
964 _a
_b0
_c
_d
_e
_fed.
_g
999 _c6081
_d6081