Não informado. Seed technologist news. Society of Commercial Seed Technologists.
Chicago-viite (17. p.)Não informado. Seed Technologist News. Louisville, Ky: Society of Commercial Seed Technologists.
MLA-viite (8. p.)Não informado. Seed Technologist News. Society of Commercial Seed Technologists.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.
