Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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