एपीए उद्धरण

Fruehling, R. T., & Bouchard, S. (1972). Art of writing effective letters. McGraw Hill Book Company.

शिकागो स्टाइल उद्धरण

Fruehling, Rosenmary T., और Sharon Bouchard. Art of Writing Effective Letters. New York: McGraw Hill Book Company, 1972.

एमएलए उद्धरण

Fruehling, Rosenmary T., और Sharon Bouchard. Art of Writing Effective Letters. McGraw Hill Book Company, 1972.