Journal of the Irrigation and Drainage Division. Vol. 115 No. 3 (1989). 

 - New York : American Society of Civil Engineers.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Papers, Technical Note, Errata and Discussion for 1989 in Vol. 115 No. 3. 
<br/><br/>EDITOR'S NOTE / John L. Merriam. TECHNICAL PAPERS : Hale Cycle and Indian Drought and Flood Area Indexes / A. Ramachandra Rao and G-H. Yu. Use of Stochastic Hydrology in Reservoir Operation / D. K. Frevert, M. S. Cowan, and W. L. Lane. Simulation Models of Sequences of Dry and Wet Days / J. W. Delleur, T. J. Chang, and M. L. Kavvas. Nonlinear Steady State Seepage into Drains / Salihu Mustafa and N. A. Rafindadi. Seepage and Contraction Joints in Concrete Canal Linings / Jeff Kishel. Systems Analysis of Tank Irrigation: I. Crop Staggering / S. G.Mayya and Rama Prasad. Systems Analysis of Tank Irrigation: II. Delayed Start and Water Deficit / Rama Prasad and S. G. Mayya. Research Imperatives for Irrigation Science / Brent E. Clothier. Water Movement in Horizontally Layered Soils / Zohrab Samani, Ali Cheraghi, and Lyman Willardson. What a Layperson Needs to Know about Water Rights / Donald J. Finlayson. Effect of Dikes and Sulfuric Acid on Cotton under Effluent irrigation / Gideon Oron and Yoel DeMalach. Particle Filtration for Wastewater Irrigation / Avner Adin and Menachem Elimelech. Stochastic Approximation Applied to Optimal irrigation and Drainage Planning / Timothy K. Gates, Roger J-B Wets and Mark E. Grismer. TECHNICAL NOTE : Three-Point Method for Estimating Cut and Fill Volumes of Land Grading / Said M. Easa. DISCUSSION : Simple Laboratory Measurement of Unsaturated Hydraulic Conductivity. Zohrab A. Samani and L. S. Willardson / Ian White. Closure by Zohrab Samani. ERRATA.