Rycroft, D. W. (1995). Prospects for the drainage of clay soils. Rome: Food and Agriculture Organization of the United Nations.
Chicago Style aipamenaRycroft, David W. Prospects for the Drainage of Clay Soils. Rome: Food and Agriculture Organization of the United Nations, 1995.
MLA aipamenaRycroft, David W. Prospects for the Drainage of Clay Soils. Rome: Food and Agriculture Organization of the United Nations, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.