Cita APA (7th ed.)
Monippally, M. M. (1997). The craft of business letter writing. Tata McGraw-Hill's.
Cita Chicago (17th ed.)
Monippally, Matthew M. The Craft of Business Letter Writing. New Delhi: Tata McGraw-Hill's, 1997.
Cita MLA (9th ed.)
Monippally, Matthew M. The Craft of Business Letter Writing. Tata McGraw-Hill's, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.