APA
Das R. U., Das R. U. & Swarup A. (2012). Regional trade and economic integration. New Jersey: World Scientific.
Chicago
Das Ram Upendra, Das Ram Upendra and Swarup Anoop. 2012. Regional trade and economic integration. New Jersey: World Scientific.
Harvard
Das R. U., Das R. U. and Swarup A. (2012). Regional trade and economic integration. New Jersey: World Scientific.
MLA
Das Ram Upendra, Das Ram Upendra and Swarup Anoop. Regional trade and economic integration. New Jersey: World Scientific. 2012.