Kirn, E., Davis, E., & Jack, D. (1990). Interactions (2nd ed.). New York: McGraw-Hill.
Chicago Style aipamenaKirn, Elaine., Ellen Davis, và Darcy Jack. Interactions. 2nd ed. New York: McGraw-Hill, 1990.
MLA aipamenaKirn, Elaine., Ellen Davis, và Darcy Jack. Interactions. 2nd ed. New York: McGraw-Hill, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.