APA引文

Summers, H. B. (1971). A thirty-year history of programs carried on national radio networks in the United States, 1926-1956. Arno Press.

芝加哥风格引文

Summers, Harrison B. A Thirty-year History of Programs Carried on National Radio Networks in the United States, 1926-1956. New York: Arno Press, 1971.

MLA引文

Summers, Harrison B. A Thirty-year History of Programs Carried on National Radio Networks in the United States, 1926-1956. Arno Press, 1971.