Coman, E. T. (1965). Sources of Business Information (Rev. ed.). University of California Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Coman, Edwin T. Sources of Business Information. Rev. ed. Berkeley: University of California Press, 1965.
MLA -ийн эшлэл (9 дэх хэвлэлт)Coman, Edwin T. Sources of Business Information. Rev. ed. University of California Press, 1965.