Present situation, problem, prospect and practical implementation problem of agricultural education and research for higher produtivity conserving nature and agroecosystem : proceedings of Tsukuba Asian seminar on Agricultural Education, 1987
[edited by S. Sato, H. Namai and Y. Kuwahara]
(Education and research for higher agricultural productivity conserving nature and agroecosystem in Asia and Pacific countries, ser. 1)
, 1988
Proceedings of Tsukuba Asian Seminar on Agricultural Education