TY  - REP
AU  - Herndon,L.P.
ED  - National Symposium on Conservation Systems. Hyatt Regency Chicago, Illinois Center (USA). 14-15 Dec 1987
TI  - Conservation systems and their role in sustaining America's soil, water, and related natural resources
SN  - 09-161-50895
U1  - 89-019583 
PY  - 1987///
KW  - America
KW  - Conservation
KW  - Land resources
KW  - Natural resources
KW  - Nature conservation and land resources
KW  - North America
KW  - Resource conservation
KW  - Resources
KW  - Soil conservation
KW  - Soil management
KW  - Water management
T2  - Optimum erosion control at least cost: proceedings of the national symposium on conservation systems. St. Joseph, Mich. (USA). American Society of Agricultural Engineers. 1987. p. 1-9
ER  -