APA

Carnegie D., . (2018). The art of public speaking. [Place of publication not identified]: [publisher of publication not identified].

Chicago

Carnegie Dale, . 2018. The art of public speaking. [Place of publication not identified]: [publisher of publication not identified].

Harvard

Carnegie D., . (2018). The art of public speaking. [Place of publication not identified]: [publisher of publication not identified].

MLA

Carnegie Dale, . The art of public speaking. [Place of publication not identified]: [publisher of publication not identified]. 2018.