Hatfield, J. (1994). Soil biology: Effects on soil quality. Lewis Publishers.
Chicago-viite (17. p.)Hatfield, J.L. Soil Biology: Effects on Soil Quality. Boca Raton: Lewis Publishers, 1994.
MLA-viite (9. p.)Hatfield, J.L. Soil Biology: Effects on Soil Quality. Lewis Publishers, 1994.
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