Jacome, D. E., & Yanez, G. F. (1987). Tremors of the smile.
Chicago Style aipamenaJacome, D E., and G F. Yanez. Tremors of the Smile. 1987.
MLA aipamenaJacome, D E., and G F. Yanez. Tremors of the Smile. 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.