TY  - BOOK
AU  - Tolley, G S (Ed.)
AU  - Riggs, F E (Ed.)
TI  - Economics of watershed planning
U1  - 333.91 21st
PY  - 1961///
CY  - Iowa
PB  - Iowa State University Press
KW  - Water resources development; Water quality-Measurment; Economic development; Natural resources
ER  -