págs. 269-270
Controlled versus Conventional Drainage Effects on Water Quality
R. Wayne Skaggs, J. Wendell Gilliam, Robert O. Evans
págs. 271-276
Agricultural Drainage Effects on Water Quality in Southeastern U.S
Daniel L. Thomas, J. Wendell Gilliam, Kenneth C. Stone, Forrest T. Izuno, Robert O. Evans, Calvin D. Perry
págs. 277-282
Drainage and Water Quality in Great Lakes and Cornbelt States
R. S. Kanwar, Larry C. Brown, Harold W. Belcher, Norman R. Fausey
págs. 283-288
Effect of Agricultural Drainage on Water Quality in Humid Portion of Pacific Northwest
Thomas L. Spofford, Dean M. Renner, Virgil L. Backlund, Patrick H. Willey, Elwin A. Ross
págs. 289-291
Agricultural Drainage and Water Quality in Mississippi Delta
Richard L. Bengtson, Cade E. Carter, James L. Fouss, Lloyd M. Southwick, Guye H. Willis
págs. 292-295
Drainage and Water Quality in Northern United States and Eastern Canada
W. F. Ritter, R. P. Rudra, S. Prasher, P. H. Milburn
págs. 296-301
Effect of Agricultural Drainage on Water Quality in Mid-Atlantic States
R. D. Wenberg, A. Shirmohammadi, F. S. Wright, W. F. Ritter
págs. 302-306
Control Method for On-Demand Operation of Open-Channel Flow
Robert Brouwer, Jan Schuurmans, Wytze Schuurmans
págs. 308-309
Subcritical Flow over Rectangular Side Weir
Bruce M. McEnroe
págs. 309-310
págs. 310-311
Using Cavity Well to Determine Aquifer Thickness and Constants
C. S. Jaiswal, H. S. Chauhan
págs. 311-312
pág. 311
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