Cita APA (7th ed.)

Reid, J. M., & Silleck, A. (1990). Better business letters: A self-instructional book to develop skill in writing (4th ed.). Addison-Wesley Pub. Co.

Cita Chicago (17th ed.)

Reid, James M., i Anne Silleck. Better Business Letters: A Self-instructional Book to Develop Skill in Writing. 4th ed. Reading, Mass: Addison-Wesley Pub. Co, 1990.

Cita MLA (9th ed.)

Reid, James M., i Anne Silleck. Better Business Letters: A Self-instructional Book to Develop Skill in Writing. 4th ed. Addison-Wesley Pub. Co, 1990.