TY  - BOOK
AU  - Derpsch,R.W.
ED  - Reading Univ. (UK)
TI  - Erosion problems in Parana, Brazil. Research results and strategies for the implementation of efficient soil conservation measures
PY  - 1986///.
CY  - Reading (UK): 
KW  - Erosao do Solo
KW  - Conservacao do Solo
KW  - Parana
N1  - 8 illus.; 17 tables; 85 ref
ER  -