APA aipamena

(1927). Speaking fundamentals: The art of self expression. New York: De Bower.

Chicago Style aipamena

Speaking Fundamentals: The Art of Self Expression. New York: De Bower, 1927.

MLA aipamena

Speaking Fundamentals: The Art of Self Expression. New York: De Bower, 1927.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.