THORNE, D. Irrigated soils ; their fertility and management. The Blakeston Co.
Chicago-referens (17:e uppl.)THORNE, D.W. Irrigated Soils ; Their Fertility and Management. The Blakeston Co.
MLA-referens (8:e uppl.)THORNE, D.W. Irrigated Soils ; Their Fertility and Management. The Blakeston Co.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.