Não informado. (1961). Soil Science and Plant Nutrition. Japanese Society of Soil Science and Plant Nutrition.
Lua i Stíl Chicago (17ú heag.)Não informado. Soil Science and Plant Nutrition. Tokyo: Japanese Society of Soil Science and Plant Nutrition, 1961.
Lua MLA (8ú heag.)Não informado. Soil Science and Plant Nutrition. Japanese Society of Soil Science and Plant Nutrition, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.