International Conference on the management of vertisols in Sub-Saharan Africa ILCA,Addis Ababa,Ethiopia, & International Livestock Centre for Africa. (1988). Management of vertisols in Sub-Saharan Africa: Proceedings of a conference held at ILCA, Addis Ababa, Ethiopia;31 August -4 September 1987. International Livestock Centre for Africa.
Chicagoスタイル(17版)引用形式International Conference on the management of vertisols in Sub-Saharan Africa ILCA,Addis Ababa,Ethiopia, , International Livestock Centre for Africa. Management of Vertisols in Sub-Saharan Africa: Proceedings of a Conference Held at ILCA, Addis Ababa, Ethiopia;31 August -4 September 1987. Addis Ababa,Ethiopia: International Livestock Centre for Africa, 1988.
MLA(9版)引用形式International Conference on the management of vertisols in Sub-Saharan Africa ILCA,Addis Ababa,Ethiopia, , International Livestock Centre for Africa. Management of Vertisols in Sub-Saharan Africa: Proceedings of a Conference Held at ILCA, Addis Ababa, Ethiopia;31 August -4 September 1987. International Livestock Centre for Africa, 1988.