L C P.M.Stuyt. (2000). FAO irrigation and drainage paper N60: Materials for subsurface land drainage systems. Rome: FAO.
Chicago Style aipamenaL C P.M.Stuyt. FAO Irrigation and Drainage Paper N60: Materials for Subsurface Land Drainage Systems. Rome: FAO, 2000.
MLA aipamenaL C P.M.Stuyt. FAO Irrigation and Drainage Paper N60: Materials for Subsurface Land Drainage Systems. Rome: FAO, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.