Cita APA (7a ed.)
Martin, W., & Pham, C. S. (2020). Estimating the gravity model when zero trade flows are frequent and economically determined. Taylor and Francis.
Cita Chicago Style (17a ed.)
Martin, Will, y Cong S. Pham. Estimating the Gravity Model When Zero Trade Flows Are Frequent and Economically Determined. Taylor and Francis, 2020.
Cita MLA (9a ed.)
Martin, Will, y Cong S. Pham. Estimating the Gravity Model When Zero Trade Flows Are Frequent and Economically Determined. Taylor and Francis, 2020.
Precaución: Estas citas no son 100% exactas.