APA
Paul R., . (1979). History of economic thought. New Delhi: Kalyani Publishers.
Chicago
Paul R.R, . 1979. History of economic thought. New Delhi: Kalyani Publishers.
Harvard
Paul R., . (1979). History of economic thought. New Delhi: Kalyani Publishers.
MLA
Paul R.R, . History of economic thought. New Delhi: Kalyani Publishers. 1979.