Coman, E. T. (1965). Sources of Business Information (Rev. ed.). University of California Press.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিComan, Edwin T. Sources of Business Information. Rev. ed. Berkeley: University of California Press, 1965.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিComan, Edwin T. Sources of Business Information. Rev. ed. University of California Press, 1965.