APA

International Board for Soil Research and Management (IBSRAM), . (1987). Management of acid tropical soils for sustainable agriculture : proceedings of an IBSRAM inaugural workshop 24 April - 3 May 1985 Yurimaguas, Peru and Brasilia, Brazil. : IBSRAM.

Chicago

International Board for Soil Research and Management (IBSRAM), . 1987. Management of acid tropical soils for sustainable agriculture : proceedings of an IBSRAM inaugural workshop 24 April - 3 May 1985 Yurimaguas, Peru and Brasilia, Brazil. : IBSRAM.

Harvard

International Board for Soil Research and Management (IBSRAM), . (1987). Management of acid tropical soils for sustainable agriculture : proceedings of an IBSRAM inaugural workshop 24 April - 3 May 1985 Yurimaguas, Peru and Brasilia, Brazil. : IBSRAM.

MLA

International Board for Soil Research and Management (IBSRAM), . Management of acid tropical soils for sustainable agriculture : proceedings of an IBSRAM inaugural workshop 24 April - 3 May 1985 Yurimaguas, Peru and Brasilia, Brazil. : IBSRAM. 1987.