Humpherys, A., Lauritzen, C. Hydraulic and geometrical relationship of lay-flat irrigation tubing. Washington: U. S. Gov. Print Office, 1964 38 p. : ill.
Humpherys, A., Lauritzen, C. Hydraulic and geometrical relationship of lay-flat irrigation tubing. Washington: U. S. Gov. Print Office, 1964 38 p. : ill.
Humpherys, A., Lauritzen, C. (1964) Hydraulic and geometrical relationship of lay-flat irrigation tubing, Washington: U. S. Gov. Print Office 38 p. : ill.
Humpherys, A., & Lauritzen, C. (1964). Hydraulic and geometrical relationship of lay-flat irrigation tubing. Washington: U. S. Gov. Print Office, 38 p. : ill.
Humpherys A, Lauritzen C. Hydraulic and geometrical relationship of lay-flat irrigation tubing. Washington: U. S. Gov. Print Office; 1964. p. 38 p. : ill.