L C P.M.Stuyt. (2000). FAO irrigation and drainage paper N60: Materials for subsurface land drainage systems. Rome: FAO.
Chicago Stili AlıntıL C P.M.Stuyt. FAO Irrigation and Drainage Paper N60: Materials for Subsurface Land Drainage Systems. Rome: FAO, 2000.
MLA AlıntıL C P.M.Stuyt. FAO Irrigation and Drainage Paper N60: Materials for Subsurface Land Drainage Systems. Rome: FAO, 2000.
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