Cita APA (7th ed.)

Bly, R. W. (2004). Webster's New World letter writing handbook. Wiley.

Cita Chicago (17th ed.)

Bly, Robert W. Webster's New World Letter Writing Handbook. Indianapolis: Wiley, 2004.

Cita MLA (9th ed.)

Bly, Robert W. Webster's New World Letter Writing Handbook. Wiley, 2004.