Cita APA (7th ed.)
Barrett, H. Practical Uses of Speech Communication. Holt, Rinehart and Winston.
Cita Chicago (17th ed.)
Barrett, Harold. Practical Uses of Speech Communication. EUA: Holt, Rinehart and Winston.
Cita MLA (9th ed.)
Barrett, Harold. Practical Uses of Speech Communication. Holt, Rinehart and Winston.
Atenció: Aquestes cites poden no estar 100% correctes.