Cita APA (7th ed.)

Sharp, D. W. (1984). Writing business letters with a personal touch. Lifetime Learning Pub.

Cita Chicago (17th ed.)

Sharp, Deborah Whittlesey. Writing Business Letters with a Personal Touch. Belmont, Calif: Lifetime Learning Pub, 1984.

Cita MLA (9th ed.)

Sharp, Deborah Whittlesey. Writing Business Letters with a Personal Touch. Lifetime Learning Pub, 1984.