Cita APA (7a ed.)
Grisley, W., Mwangi, W., & Degu, G. (1990). Food self-sufficiency, fertilizer use, and access to formal credit: A test of the relationships on small farms in Ethiopia. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Grisley, W., W. Mwangi, y G. Degu. Food Self-sufficiency, Fertilizer Use, and Access to Formal Credit: A Test of the Relationships on Small Farms in Ethiopia. International Center for Tropical Agriculture, 1990.
Cita MLA (9a ed.)
Grisley, W., et al. Food Self-sufficiency, Fertilizer Use, and Access to Formal Credit: A Test of the Relationships on Small Farms in Ethiopia. International Center for Tropical Agriculture, 1990.
Precaución: Estas citas no son 100% exactas.