David W Rycroff. (1995). FAO irrgation and drainage paper N.51: Prospects for the drainage of clay soils. Rome: FAO.
Chicago Style aipamenaDavid W Rycroff. FAO Irrgation and Drainage Paper N.51: Prospects for the Drainage of Clay Soils. Rome: FAO, 1995.
MLA aipamenaDavid W Rycroff. FAO Irrgation and Drainage Paper N.51: Prospects for the Drainage of Clay Soils. Rome: FAO, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.