Applebaum, E., & Weintraub, S. (1977). Modern economic thought. University of Pennsylvania Press.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিApplebaum, Eileen, এবং Sidney Weintraub. Modern Economic Thought. [Philadelphia]: University of Pennsylvania Press, 1977.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিApplebaum, Eileen, এবং Sidney Weintraub. Modern Economic Thought. University of Pennsylvania Press, 1977.