Steil, L. K., & Barker, L. L. (1983). Effective listening: Key to your success. Addison-Wesley.
Chicago Style (17th ed.) ZitazioaSteil, Lyman K., eta Larry Lee Barker. Effective Listening: Key to Your Success. Massachusetts: Addison-Wesley, 1983.
MLA (9th ed.) ZitazioaSteil, Lyman K., eta Larry Lee Barker. Effective Listening: Key to Your Success. Addison-Wesley, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.