TY  - BOOK
AU  - Morgan,R.P.C.(ed)
ED  - Conservation 80 , the International Conference on Soil Conservation
TI  - Soil conservation: problems and prospects; Proceedings of Conservation 80, the International Conference on Soil Conservation, Silsoe, Bedford, UK, 21-25 July, 1980
PY  - 1981///.
CY  - Chichester (UK): 
PB  - John Wiley, 
KW  - Conservação do solo
KW  - Erosão
KW  - Controle de erosão
N1  - Includes bibliographies
ER  -