Cita APA (7th ed.)

Bey, V., Concheff, B. J., & Yates, J. (2022). Spanish verb drills (Sixth edition.). McGraw-Hill.

Cita Chicago (17th ed.)

Bey, Vivienne, Beatrice Jorgensen Concheff, i Jean Yates. Spanish Verb Drills. Sixth edition. New York: McGraw-Hill, 2022.

Cita MLA (9th ed.)

Bey, Vivienne, et al. Spanish Verb Drills. Sixth edition. McGraw-Hill, 2022.