Citazione Stile APA (7a Edizione)

Bey, V., Concheff, B. J., & Yates, J. (2017). Spanish verb drills (Fifth edition.). McGraw-Hill Education.

Citazione stile Chigago Style (17a edizione)

Bey, Vivienne, Beatrice Jorgensen Concheff, e Jean Yates. Spanish Verb Drills. Fifth edition. New York: McGraw-Hill Education, 2017.

Citatione MLA (9a ed.)

Bey, Vivienne, et al. Spanish Verb Drills. Fifth edition. McGraw-Hill Education, 2017.