Citazione Stile APA (7a Edizione)

Hobbs, J. A., & Duncan, R. L. (1992). Arts, ideas and civilization (2nd ed.). Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Hobbs, Jack A., e Robert L. Duncan. Arts, Ideas and Civilization. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1992.

Citatione MLA (9a ed.)

Hobbs, Jack A., e Robert L. Duncan. Arts, Ideas and Civilization. 2nd ed. Prentice-Hall, 1992.