1. Friction Coefficient Tests;Killam;Jour. A.W.W.A.,1932
2. Friction Losses in Bitumastic-lined Water Pipes;Sherman;Jour. A.W.W.A.,1933
3. Friction Losses in 30-in. Steel Pipe Lined With Bitumastic Enamel;Gannett;Jour. A.W.W.A.,1934
4. Cates , Walter H. Friction Test on Enamel-lined Steel Pipe Western Constr. News 1934
5. Pipeline Friction Coefficients and Effect of Age Thereon;Committee Report;J.N.E.W.W.A.,1935