Lyman S. Willardson

Plow Installation of Plastic Drain Tubing

Lyman S. Willardson, 1974 .

Drain Envelope Response to Field Treatments

J. R. Spencer, Lyman S. Willardson, Sterling Davis, 1975 .

Parabolic Canal Design and Analysis

Lyman S. Willardson, Andrei P. Mironenko, S. Abdollah Jenab, 1984 .

Closure to “Head Loss at Soil‐Drain Envelope Interfaces” by David W. Miller and Lyman S. Willardson (June, 1983)

Lyman S. Willardson, David W. Miller, 1984 .

Chapter 9. Drainage Systems

Lyman S. Willardson, Larry G. King, 2007 .