Johnson, H. (1990). Professional communications -: For a change. Prentice Hall.
Chicago Style (17th ed.) CitationJohnson, Hans. Professional Communications -: For a Change. New York: Prentice Hall, 1990.
MLA (9th ed.) CitationJohnson, Hans. Professional Communications -: For a Change. Prentice Hall, 1990.
Warning: These citations may not always be 100% accurate.