Cita APA (7a ed.)

Agard, F. B., Bandera, E., & Bandera, C. (1968). Modern approach to Spanish: Revised. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Agard, Frederick B., Esther Bandera, y Cesáreo Bandera. Modern Approach to Spanish: Revised. New York [etc.]: Holt, Rinehart and Winston, 1968.

Cita MLA (9a ed.)

Agard, Frederick B., et al. Modern Approach to Spanish: Revised. Holt, Rinehart and Winston, 1968.