000
00298nam a2200133Ia 4500
008
160316s1993 xxu||||| |||| 00| 0 eng d
020
_a
100
_a
Donald L Sparks
245
_a
Advances In Agronomy
250
_a
1
260
_a
NEW YORK
_b
ACADEMIC PRESS
_c
1993
300
_a
277
700
_a
_a
999
_c
24843
_d
24843