Symposium on the Economics of Watershed Planning Knoxville, Tenn, Tolley, G. S., & Riggs, F. E. (1961). Economics of watershed planning. Iowa State University Press.
Chicago-Zitierstil (17. Ausg.)Symposium on the Economics of Watershed Planning Knoxville, Tenn, George S. Tolley, und Fletcher E. Riggs. Economics of Watershed Planning. Ames: Iowa State University Press, 1961.
MLA-Zitierstil (9. Ausg.)Symposium on the Economics of Watershed Planning Knoxville, Tenn, et al. Economics of Watershed Planning. Iowa State University Press, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.