Bey, V., Concheff, B. J., & Yates, J. (2022). Spanish verb drills (Sixth edition.). McGraw-Hill.
Chicago (17e ed.) BronvermeldingBey, Vivienne, Beatrice Jorgensen Concheff, en Jean Yates. Spanish Verb Drills. Sixth edition. New York: McGraw-Hill, 2022.
MLA (9e ed.) BronvermeldingBey, Vivienne, et al. Spanish Verb Drills. Sixth edition. McGraw-Hill, 2022.
Let op: Deze citaties zijn niet altijd 100% accuraat.