Zessin, K., & Baumann, M. P. O. (1982). Report on the livestock disease survey: Bahr El Ghazal province - Sudan : Technical cooperation Federal Republic of Germany - Democatric Republic of Sudan. German Agency for Technical Cooperation (GTZ), GmbH in cooperation with Federal Health Office, Berlin.
Chicago-Zitierstil (17. Ausg.)Zessin, Karl-Hans, und M. P. O. Baumann. Report on the Livestock Disease Survey: Bahr El Ghazal Province - Sudan : Technical Cooperation Federal Republic of Germany - Democatric Republic of Sudan. Berlin: German Agency for Technical Cooperation (GTZ), GmbH in cooperation with Federal Health Office, Berlin, 1982.
MLA-Zitierstil (9. Ausg.)Zessin, Karl-Hans, und M. P. O. Baumann. Report on the Livestock Disease Survey: Bahr El Ghazal Province - Sudan : Technical Cooperation Federal Republic of Germany - Democatric Republic of Sudan. German Agency for Technical Cooperation (GTZ), GmbH in cooperation with Federal Health Office, Berlin, 1982.