000 00417nam a2200109Ia 45e0
008 131018n xxu |||gr||||Z||||||eng
100 _aBlack, C. A,
_eAuthor.
245 0 _aLaboratory Methods of Soil Investigation Soil Fertility
_cC. A. Black
_hTextual Documents
260 _a[s.l]:
_bDepartment of Agronomy, IOWA,
_c1961.
300 _a100.
942 _2ddc
_cTXT
999 _c38051
_d38051