Brasil. Secretaria de Ciéncia, T. e. M. A., & Brasil. Secretaria de Ciéncia, T. e. M. A. (1999). The state policy to control desertification. [Pernambuco, Brasil ]: Government of the State of Pernambuco, Secretariat for Science, Technology and E.
Citación estilo ChicagoBrasil. Secretaria de Ciéncia, Tecnología e Meio Ambiente, y Tecnología e Meio Ambiente Brasil. Secretaria de Ciéncia. The State Policy to Control Desertification. [Pernambuco, Brasil ]: Government of the State of Pernambuco, Secretariat for Science, Technology and E, 1999.
Cita MLABrasil. Secretaria de Ciéncia, Tecnología e Meio Ambiente, y Tecnología e Meio Ambiente Brasil. Secretaria de Ciéncia. The State Policy to Control Desertification. [Pernambuco, Brasil ]: Government of the State of Pernambuco, Secretariat for Science, Technology and E, 1999.