APA

Mawhinney C. E. K., Smith H. A., . (1950). Business and professional speech. New York: American Book Co.

Chicago

Mawhinney Clara E Krefting, Smith Harley Albert, . 1950. Business and professional speech. New York: American Book Co.

Harvard

Mawhinney C. E. K., Smith H. A., . (1950). Business and professional speech. New York: American Book Co.

MLA

Mawhinney Clara E Krefting, Smith Harley Albert, . Business and professional speech. New York: American Book Co. 1950.