International Workshop on Peste des Petits Ruminants (PPR) in Sheep and Goats International Institute of Tropical Agriculture, Ibadan, Nigeria), International Livestock Centre for Africa, & Hill, D. H. (1983). Peste des petits ruminants (PPR) in sheep and goats: Proceedings of the International Workshop held at IITA, Ibadan, Nigeria, 24-26 September, 1980. International Livestock Centre for Africa.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)International Workshop on Peste des Petits Ruminants (PPR) in Sheep and Goats International Institute of Tropical Agriculture, Ibadan, Nigeria), International Livestock Centre for Africa, và D. H. Hill. Peste Des Petits Ruminants (PPR) in Sheep and Goats: Proceedings of the International Workshop Held at IITA, Ibadan, Nigeria, 24-26 September, 1980. Addis Abada: International Livestock Centre for Africa, 1983.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)International Workshop on Peste des Petits Ruminants (PPR) in Sheep and Goats International Institute of Tropical Agriculture, Ibadan, Nigeria), et al. Peste Des Petits Ruminants (PPR) in Sheep and Goats: Proceedings of the International Workshop Held at IITA, Ibadan, Nigeria, 24-26 September, 1980. International Livestock Centre for Africa, 1983.