000
00239nam a2200085Ia 4500
008
130123s9999 xx 000 0 und d
082
_a
630
245
_a
Agronomy Journal Vol 62 No. 1-6
260
_a
Winconsin
_b
American Society of Agronomy
_c
1970
999
_c
77404
_d
77404