APA-referens (7:e uppl.)

Coman, E. T. (1965). Sources of Business Information (Rev. ed.). University of California Press.

Chicago-referens (17:e uppl.)

Coman, Edwin T. Sources of Business Information. Rev. ed. Berkeley: University of California Press, 1965.

MLA-referens (9:e uppl.)

Coman, Edwin T. Sources of Business Information. Rev. ed. University of California Press, 1965.