Ichiminami, Fumikazu.
Spatial patterns of productivity of agricultural land in Japan from 1960 to 1975. - Japón-JP : University of Tsukuba, 1982. - páginas 19-37 : ilustraciones blanco y negro - Irregular - Vol. 3 (Mar. 1982) - Science reports of the institute of geosciencce univerity of Tsukuba . - Science reports of the institute of geosciencce univerity of Tsukuba. .
Spatial patterns of productivity of agricultural land in Japan from 1960 to 1975. - Japón-JP : University of Tsukuba, 1982. - páginas 19-37 : ilustraciones blanco y negro - Irregular - Vol. 3 (Mar. 1982) - Science reports of the institute of geosciencce univerity of Tsukuba . - Science reports of the institute of geosciencce univerity of Tsukuba. .
