APA ציטוט

Joseph G E. Hopkins. (1964). Concise dictionary of American biography. New York: Charles Scribner.

Trích dẫn kiểu Chicago

Joseph G E. Hopkins. Concise Dictionary of American Biography. New York: Charles Scribner, 1964.

ציטוט MLA

Joseph G E. Hopkins. Concise Dictionary of American Biography. New York: Charles Scribner, 1964.