APA-viite (7. p.)
Duncan, C., Bruno, C. J., & Rice, M. P. (1995). Learn to speak Spanish: The complete interactive course. Hyperglot Software Co..
Chicago-viite (17. p.)
Duncan, Cynthia, Charles J. Bruno, ja Martin P. Rice. Learn to Speak Spanish: The Complete Interactive Course. Knoxville, TN: Hyperglot Software Co., 1995.
MLA-viite (9. p.)
Duncan, Cynthia, et al. Learn to Speak Spanish: The Complete Interactive Course. Hyperglot Software Co., 1995.
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