Citazione Stile APA (7a Edizione)

Coman, E. T. (1949). Sources of business information. Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Coman, Edwin Truman. Sources of Business Information. N.Y.: Prentice-Hall, 1949.

Citatione MLA (8a ed.)

Coman, Edwin Truman. Sources of Business Information. Prentice-Hall, 1949.