Cita APA (7a ed.)

Barrett, J., & Yanes, F. J. (1909). Peru: General Descriptive Data Prepared in June. International Union Of American Republics.

Cita Chicago Style (17a ed.)

Barrett, John, y Francisco Javier Yanes. Peru: General Descriptive Data Prepared in June. Washington: International Union Of American Republics, 1909.

Cita MLA (9a ed.)

Barrett, John, y Francisco Javier Yanes. Peru: General Descriptive Data Prepared in June. International Union Of American Republics, 1909.