Cita APA

Wageninggen, & International Soil reference and Information Centre. (1990). Annual report 1990. The Netherland: International Soil reference and Information Centre Wageninggen.

Citación estilo Chicago

Wageninggen, y International Soil reference and Information Centre. Annual Report 1990. The Netherland: International Soil reference and Information Centre Wageninggen, 1990.

Cita MLA

Wageninggen, y International Soil reference and Information Centre. Annual Report 1990. The Netherland: International Soil reference and Information Centre Wageninggen, 1990.

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