Cita APA

Humphrey, D., Vale, B., & Kim, M. (1999). Realizing the gains from electronic payments: Costs, pricing, and payment choice. Madrid: Confederación Española de Cajas de Ahorro, Fundación FIES.

Citación estilo Chicago

Humphrey, David, Bent Vale, and Moshe Kim. Realizing the Gains From Electronic Payments: Costs, Pricing, and Payment Choice. Madrid: Confederación Española de Cajas de Ahorro, Fundación FIES, 1999.

Cita MLA

Humphrey, David, Bent Vale, and Moshe Kim. Realizing the Gains From Electronic Payments: Costs, Pricing, and Payment Choice. Madrid: Confederación Española de Cajas de Ahorro, Fundación FIES, 1999.