एपीए उद्धरण

Lichtheim, G. (1971). Imperialism. New York: Allen Lane The Penguin Press.

शिकागो स्टाइल उद्धरण

Lichtheim, George. Imperialism. New York: Allen Lane The Penguin Press, 1971.

एमएलए उद्धरण

Lichtheim, George. Imperialism. New York: Allen Lane The Penguin Press, 1971.