Cita APA (7a ed.)

León Vélez, M. V., & Vanegas, M. B. The United States as a melting pot in world history.

Cita Chicago Style (17a ed.)

León Vélez, María Verónica, y María Bernardita Vanegas. The United States as a Melting Pot in World History.

Cita MLA (8a ed.)

León Vélez, María Verónica, y María Bernardita Vanegas. The United States as a Melting Pot in World History.