Cita APA (7th ed.)

Adams, W. R. (1980). PREP: For better reading. Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

Adams, W. Royce. PREP: For Better Reading. New York: Holt, Rinehart and Winston, 1980.

Cita MLA (8th ed.)

Adams, W. Royce. PREP: For Better Reading. Holt, Rinehart and Winston, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.