Otsuki, M. (1961). Japanese agriculture and the direction of its development. The National Research Institute of Agriculture.
Lua i Stíl Chicago (17ú heag.)Otsuki, Masao. Japanese Agriculture and the Direction of Its Development. Tokyo: The National Research Institute of Agriculture, 1961.
Lua MLA (9ú heag.)Otsuki, Masao. Japanese Agriculture and the Direction of Its Development. The National Research Institute of Agriculture, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.