APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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