Cita APA (7th ed.)

Van, R. (1954). Speech correction: Principles and methods (3rd edition.). Prentice-Hall.

Cita Chicago (17th ed.)

Van, Riper. Speech Correction: Principles and Methods. 3rd edition. Englewood Cliffs, New Jersey: Prentice-Hall, 1954.

Cita MLA (9th ed.)

Van, Riper. Speech Correction: Principles and Methods. 3rd edition. Prentice-Hall, 1954.