Παραπομπή APA

Ruggiero, V. R. (1971). Elements of rhetoric. Prentice Hall.

Παραπομπή Chicago Style

Ruggiero, Vincent Ryan. Elements of Rhetoric. Prentice Hall, 1971.

Παραπομπή MLA

Ruggiero, Vincent Ryan. Elements of Rhetoric. Prentice Hall, 1971.