Cita APA (7a ed.)
Koester, U., Schafer, H., & Valdés, A. (1989). External demand constraints for agricultural exports: An impediment to structural adjustment policies in sub-Saharan African countries? Elsevier.
Cita Chicago Style (17a ed.)
Koester, Ulrich, Hartwig Schafer, y Alberto Valdés. External Demand Constraints for Agricultural Exports: An Impediment to Structural Adjustment Policies in Sub-Saharan African Countries? Elsevier, 1989.
Cita MLA (9a ed.)
Koester, Ulrich, et al. External Demand Constraints for Agricultural Exports: An Impediment to Structural Adjustment Policies in Sub-Saharan African Countries? Elsevier, 1989.
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