Sheff, D. A. (1964). Secretarial english. New York: Regents Publishing Company.
Chicago Style CitationSheff, Donald A. Secretarial English. New York: Regents Publishing Company, 1964.
MLA CitationSheff, Donald A. Secretarial English. New York: Regents Publishing Company, 1964.
Warning: These citations may not always be 100% accurate.