एपीए उद्धरण

Roll, E. (1956). A history of economic thought. Englewood Cliffs: Prentice-Hall, Inc.

शिकागो स्टाइल उद्धरण

Roll, Eric. A History of Economic Thought. Englewood Cliffs: Prentice-Hall, Inc, 1956.

एमएलए उद्धरण

Roll, Eric. A History of Economic Thought. Englewood Cliffs: Prentice-Hall, Inc, 1956.