APA引文

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

Chicago Edition Citation

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

MLA引文

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