Cita APA (7a ed.)
Seyoum, E., & McIntire, J. M. (1987). Literature review and economic analysis of crop response to phosphate rocks in eastern Africa.
Cita Chicago Style (17a ed.)
Seyoum, E., y John M. McIntire. Literature Review and Economic Analysis of Crop Response to Phosphate Rocks in Eastern Africa. 1987.
Cita MLA (9a ed.)
Seyoum, E., y John M. McIntire. Literature Review and Economic Analysis of Crop Response to Phosphate Rocks in Eastern Africa. 1987.
Precaución: Estas citas no son 100% exactas.