APA-viite (7. p.)

Tornos, A. d. (1922). The combined spanish method. D. Appleton-Century Company.

Chicago-viite (17. p.)

Tornos, Alberto de. The Combined Spanish Method. New York, Estados Unidos: D. Appleton-Century Company, 1922.

MLA-viite (9. p.)

Tornos, Alberto de. The Combined Spanish Method. D. Appleton-Century Company, 1922.