Wageninggen, & International Soil reference and Information Centre. (1990). Annual report 1990. The Netherland: International Soil reference and Information Centre Wageninggen.
シカゴスタイル引用形Wageninggen, , International Soil reference and Information Centre. Annual Report 1990. The Netherland: International Soil reference and Information Centre Wageninggen, 1990.
MLA引用形式Wageninggen, , International Soil reference and Information Centre. Annual Report 1990. The Netherland: International Soil reference and Information Centre Wageninggen, 1990.
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