Cita APA (7th ed.)

Monippally, M. (1997). The craft of business letter writing. TMH.

Cita Chicago (17th ed.)

Monippally, Mathew. The Craft of Business Letter Writing. New delhi: TMH, 1997.

Cita MLA (9th ed.)

Monippally, Mathew. The Craft of Business Letter Writing. TMH, 1997.