APA استشهاد

Hellman, C. I. (1956). Elements of radio (3rd ed.). Van Nostrand Affilated East West Press.

استشهاد بنمط شيكاغو

Hellman, Charles I. Elements of Radio. 3rd ed. Princeton, N.J., New Delhi: Van Nostrand Affilated East West Press, 1956.

MLA استشهاد

Hellman, Charles I. Elements of Radio. 3rd ed. Van Nostrand Affilated East West Press, 1956.