Rai, U. (1991). Business Communication. Himalaya Publishing House.
Cita Chicago Style (17a ed.)Rai, U. Business Communication. Mumbai: Himalaya Publishing House, 1991.
Cita MLA (9a ed.)Rai, U. Business Communication. Himalaya Publishing House, 1991.
Precaución: Estas citas no son 100% exactas.