000
00269nam a2200097Ia 4500
008
180426s2012 xx 000 0 und d
082
_a
631.416 S6
245
0
_a
Soil Potassium and Magnetism
260
_b
Soil Chemists of the Nat. Agril.Advisory
_c
1967
942
_2
ddc
_c
AG
999
_c
129892
_d
129892