Guidelines for designing and evaluating surface irrigation systems /
Walker, W. R.
Guidelines for designing and evaluating surface irrigation systems / by W.R. Walker. - Rome : Food and Agriculture Organization of the United Nations, 1989. - xi, 137 p. - FAO irrigation and drainage paper ; .
9251028796
Irrigation engineering.
Irrigation--Evaluation.
Guidelines for designing and evaluating surface irrigation systems / by W.R. Walker. - Rome : Food and Agriculture Organization of the United Nations, 1989. - xi, 137 p. - FAO irrigation and drainage paper ; .
9251028796
Irrigation engineering.
Irrigation--Evaluation.