APA
Kelly K. A., . (1990). The Random House Guide to Business Writing. New York: McGraw-Hill.
Chicago
Kelly Kathleen A, . 1990. The Random House Guide to Business Writing. New York: McGraw-Hill.
Harvard
Kelly K. A., . (1990). The Random House Guide to Business Writing. New York: McGraw-Hill.
MLA
Kelly Kathleen A, . The Random House Guide to Business Writing. New York: McGraw-Hill. 1990.