TY - BOOK AU - Emerson,W.W. AU - Bond,R.D. AU - Dexter,A.R. TI - Modification of soil structure SN - 0471995304 PY - 1978/// CY - Chichester PB - John Wiley & Sons KW - Soil structure KW - Congresses KW - Soil science KW - Soil conditioners ER -