Ullah, M. A. (2010). Forage production in Panicum grass-legumes intercropping by combining geometrical configuration, inoculation and fertilizer under rainfed conditions. Kassel University Press.
Chicago-viite (17. p.)Ullah, Muhammad Arshad. Forage Production in Panicum Grass-legumes Intercropping by Combining Geometrical Configuration, Inoculation and Fertilizer Under Rainfed Conditions. Kassel: Kassel University Press, 2010.
MLA-viite (9. p.)Ullah, Muhammad Arshad. Forage Production in Panicum Grass-legumes Intercropping by Combining Geometrical Configuration, Inoculation and Fertilizer Under Rainfed Conditions. Kassel University Press, 2010.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.