Cita APA (7a ed.)

Donald, R. B. (1995). Writing clear paragraphs (5th ed.). Prentice Hall.

Cita Chicago Style (17a ed.)

Donald, Robert B. Writing Clear Paragraphs. 5th ed. Englewood Cliffs, N.J: Prentice Hall, 1995.

Cita MLA (9a ed.)

Donald, Robert B. Writing Clear Paragraphs. 5th ed. Prentice Hall, 1995.