Ratan, R. D. (1979). Selected bibliography of rice-soils, plant nutrition, and fertilizer use for rice. Central Rice Research Institute.
Lua i Stíl Chicago (17ú heag.)Ratan, R. D. Selected Bibliography of Rice-soils, Plant Nutrition, and Fertilizer Use for Rice. Cuttack: Central Rice Research Institute, 1979.
Lua MLA (8ú heag.)Ratan, R. D. Selected Bibliography of Rice-soils, Plant Nutrition, and Fertilizer Use for Rice. Central Rice Research Institute, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.