APA

Henderson G. L. F. (., Voiles P. R., . (1987). Business English essentials. New York: McGraw-Hill.

Chicago

Henderson Greta La Follette (Whiteside), Voiles Price R, . 1987. Business English essentials. New York: McGraw-Hill.

Harvard

Henderson G. L. F. (., Voiles P. R., . (1987). Business English essentials. New York: McGraw-Hill.

MLA

Henderson Greta La Follette (Whiteside), Voiles Price R, . Business English essentials. New York: McGraw-Hill. 1987.