THORNE, D. Irrigated soils ; their fertility and management. The Blakeston Co.
Chicago-viite (17. p.)THORNE, D.W. Irrigated Soils ; Their Fertility and Management. The Blakeston Co.
MLA-viite (8. p.)THORNE, D.W. Irrigated Soils ; Their Fertility and Management. The Blakeston Co.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.