International Symposium on Distribution, Characteristics and Utilization of Problem Soils Tsukuba, & Nihon Dojo Hiryo Gakkai. (1982). Proceedings of a symposium on tropical agriculture research, Tsukuba, October 19-26, 1981. Japanese Society of Soil Science and Plant Nutrition.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Symposium on Distribution, Characteristics and Utilization of Problem Soils Tsukuba, और Nihon Dojo Hiryo Gakkai. Proceedings of a Symposium on Tropical Agriculture Research, Tsukuba, October 19-26, 1981. Tokyo: Japanese Society of Soil Science and Plant Nutrition, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternational Symposium on Distribution, Characteristics and Utilization of Problem Soils Tsukuba, और Nihon Dojo Hiryo Gakkai. Proceedings of a Symposium on Tropical Agriculture Research, Tsukuba, October 19-26, 1981. Japanese Society of Soil Science and Plant Nutrition, 1982.