000
00314nam a2200121Ia 4500
008
170101s1980 xx 000 0 und d
082
_a
631.4 UNI
100
_a
United Nations
245
0
_a
Soil and Plant Testing as A Basis of Fertilizer Recommendations
260
_c
1980
300
_a
100 p.
942
_2
ddc
_c
B
999
_c
750416
_d
750416