Cita APA (7a ed.)
Abebe, M., & Jutzi, S. (1989). The joint project on improved management and utilization of dark clay soils in Ethiopia - Retrospects and prospects. IBSRAM.
Cita Chicago Style (17a ed.)
Abebe, M., y S.C Jutzi. The Joint Project on Improved Management and Utilization of Dark Clay Soils in Ethiopia - Retrospects and Prospects. IBSRAM, 1989.
Cita MLA (9a ed.)
Abebe, M., y S.C Jutzi. The Joint Project on Improved Management and Utilization of Dark Clay Soils in Ethiopia - Retrospects and Prospects. IBSRAM, 1989.
Precaución: Estas citas no son 100% exactas.