Cita APA (7a ed.)

Kumada, K. (1987). Chemistry of soil organic matter. Japan Scientific Societies Press.

Cita Chicago Style (17a ed.)

Kumada, Kyoichi. Chemistry of Soil Organic Matter. Tokyo: Japan Scientific Societies Press, 1987.

Cita MLA (8a ed.)

Kumada, Kyoichi. Chemistry of Soil Organic Matter. Japan Scientific Societies Press, 1987.